diff --git a/hkexsh/hkexsh-vis.gv b/hkexsh/hkexsh-vis.gv
index 7ea9c73..ecba7b4 100755
--- a/hkexsh/hkexsh-vis.gv
+++ b/hkexsh/hkexsh-vis.gv
@@ -20,71 +20,71 @@ labeljust="c";
 fontsize="18";
 bgcolor="#e6ecfa";
         
-        "blitter.com/go/hkexsh/hkexsh.doShellMode$2" [ label="doShellMode$2" style="dotted,filled" fillcolor="lightblue" ]
-        "blitter.com/go/hkexsh/hkexsh.doShellMode$2$1" [ fillcolor="lightblue" label="doShellMode$2$1" style="dotted,filled" ]
-        "blitter.com/go/hkexsh/hkexsh.doCopyMode" [ fillcolor="lightblue" label="doCopyMode" penwidth="0.5" ]
-        "blitter.com/go/hkexsh/hkexsh.main$1" [ fillcolor="lightblue" label="main$1" style="dotted,filled" ]
-        "blitter.com/go/hkexsh/hkexsh.main$2" [ style="dotted,filled" fillcolor="lightblue" label="main$2" ]
-        "blitter.com/go/hkexsh/hkexsh.handleTermResizes$1" [ fillcolor="lightblue" label="handleTermResizes$1" style="dotted,filled" ]
-        "blitter.com/go/hkexsh/hkexsh.GetSize" [ fillcolor="lightblue" label="GetSize" penwidth="1.5" ]
-        "blitter.com/go/hkexsh/hkexsh.rejectUserMsg" [ fillcolor="lightblue" label="rejectUserMsg" penwidth="0.5" ]
         "blitter.com/go/hkexsh/hkexsh.reqTunnel" [ fillcolor="lightblue" label="reqTunnel" penwidth="0.5" ]
-        "blitter.com/go/hkexsh/hkexsh.launchTuns" [ label="launchTuns" penwidth="0.5" fillcolor="lightblue" ]
-        "blitter.com/go/hkexsh/hkexsh.sendSessionParams" [ fillcolor="lightblue" label="sendSessionParams" penwidth="0.5" ]
-        "blitter.com/go/hkexsh/hkexsh.doShellMode$1" [ fillcolor="lightblue" label="doShellMode$1" style="dotted,filled" ]
-        "blitter.com/go/hkexsh/hkexsh.doShellMode" [ fillcolor="lightblue" label="doShellMode" penwidth="0.5" ]
-        "blitter.com/go/hkexsh/hkexsh.handleTermResizes" [ fillcolor="lightblue" label="handleTermResizes" penwidth="0.5" ]
+        "blitter.com/go/hkexsh/hkexsh.launchTuns" [ fillcolor="lightblue" label="launchTuns" penwidth="0.5" ]
+        "blitter.com/go/hkexsh/hkexsh.rejectUserMsg" [ penwidth="0.5" fillcolor="lightblue" label="rejectUserMsg" ]
         "blitter.com/go/hkexsh/hkexsh.main" [ fillcolor="lightblue" label="main" penwidth="0.5" ]
         "blitter.com/go/hkexsh/hkexsh.parseNonSwitchArgs" [ fillcolor="lightblue" label="parseNonSwitchArgs" penwidth="0.5" ]
+        "blitter.com/go/hkexsh/hkexsh.main$1" [ fillcolor="lightblue" label="deferRestore" style="dotted,filled" ]
+        "blitter.com/go/hkexsh/hkexsh.sendSessionParams" [ label="sendSessionParams" penwidth="0.5" fillcolor="lightblue" ]
+        "blitter.com/go/hkexsh/hkexsh.main$2" [ fillcolor="lightblue" label="deferCloseChaff" style="dotted,filled" ]
+        "blitter.com/go/hkexsh/hkexsh.doShellMode$1" [ fillcolor="lightblue" label="shellRemoteToStdin" style="dotted,filled" ]
+        "blitter.com/go/hkexsh/hkexsh.doShellMode" [ penwidth="0.5" fillcolor="lightblue" label="doShellMode" ]
+        "blitter.com/go/hkexsh/hkexsh.handleTermResizes$1" [ fillcolor="lightblue" label="handleTermResizes$1" style="dotted,filled" ]
+        "blitter.com/go/hkexsh/hkexsh.GetSize" [ penwidth="1.5" fillcolor="lightblue" label="GetSize" ]
+        "blitter.com/go/hkexsh/hkexsh.handleTermResizes" [ label="handleTermResizes" penwidth="0.5" fillcolor="lightblue" ]
+        "blitter.com/go/hkexsh/hkexsh.doShellMode$2" [ fillcolor="lightblue" label="shellStdinToRemote" style="dotted,filled" ]
+        "blitter.com/go/hkexsh/hkexsh.doShellMode$2$1" [ fillcolor="lightblue" label="doShellMode$2$1" style="dotted,filled" ]
+        "blitter.com/go/hkexsh/hkexsh.doCopyMode" [ penwidth="0.5" fillcolor="lightblue" label="doCopyMode" ]
         "blitter.com/go/hkexsh/hkexsh.usageShell" [ fillcolor="lightblue" label="usageShell" penwidth="0.5" ]
-        "blitter.com/go/hkexsh/hkexsh.usageCp" [ fillcolor="lightblue" label="usageCp" penwidth="0.5" ]
+        "blitter.com/go/hkexsh/hkexsh.usageCp" [ penwidth="0.5" fillcolor="lightblue" label="usageCp" ]
         
         subgraph "cluster_blitter.com/go/hkexsh" {
         URL="/?f=blitter.com/go/hkexsh";
 tooltip="package: blitter.com/go/hkexsh";
-fontsize="16";
+fontname="bold";
+label="[hkexsh]";
 style="filled";
 fillcolor="lightyellow";
-label="[hkexsh]";
-penwidth="0.8";
-fontname="bold";
 rank="sink";
+penwidth="0.8";
+fontsize="16";
         
-        "blitter.com/go/hkexsh.Restore" [ fillcolor="moccasin" label="Restore" penwidth="1.5" ]
         "blitter.com/go/hkexsh.MakeRaw" [ fillcolor="moccasin" label="MakeRaw" penwidth="1.5" ]
+        "blitter.com/go/hkexsh.Restore" [ fillcolor="moccasin" label="Restore" penwidth="1.5" ]
         "blitter.com/go/hkexsh.ReadPassword" [ fillcolor="moccasin" label="ReadPassword" penwidth="1.5" ]
         "blitter.com/go/hkexsh.NewSession" [ fillcolor="moccasin" label="NewSession" penwidth="1.5" ]
         
         subgraph "cluster_*blitter.com/go/hkexsh.Session" {
-        labelloc="b";
-style="rounded,filled";
-fillcolor="wheat2";
+        fillcolor="wheat2";
 label="(*Session)";
 tooltip="type: *blitter.com/go/hkexsh.Session";
 penwidth="0.5";
 fontsize="15";
 fontcolor="#222222";
+labelloc="b";
+style="rounded,filled";
         
         "(*blitter.com/go/hkexsh.Session).SetStatus" [ fillcolor="moccasin" label="SetStatus" penwidth="1.5" ]
         
     }
 
         subgraph "cluster_blitter.com/go/hkexsh.Session" {
-        labelloc="b";
-style="rounded,filled";
-fillcolor="wheat2";
-label="(Session)";
-tooltip="type: blitter.com/go/hkexsh.Session";
+        tooltip="type: blitter.com/go/hkexsh.Session";
 penwidth="0.5";
 fontsize="15";
 fontcolor="#222222";
+labelloc="b";
+style="rounded,filled";
+fillcolor="wheat2";
+label="(Session)";
         
-        "(blitter.com/go/hkexsh.Session).Cmd" [ fillcolor="moccasin" label="Cmd" penwidth="1.5" ]
         "(blitter.com/go/hkexsh.Session).Op" [ fillcolor="moccasin" label="Op" penwidth="1.5" ]
         "(blitter.com/go/hkexsh.Session).Who" [ fillcolor="moccasin" label="Who" penwidth="1.5" ]
-        "(blitter.com/go/hkexsh.Session).ConnHost" [ fillcolor="moccasin" label="ConnHost" penwidth="1.5" ]
-        "(blitter.com/go/hkexsh.Session).TermType" [ fillcolor="moccasin" label="TermType" penwidth="1.5" ]
-        "(blitter.com/go/hkexsh.Session).AuthCookie" [ fillcolor="moccasin" label="AuthCookie" penwidth="1.5" ]
+        "(blitter.com/go/hkexsh.Session).ConnHost" [ penwidth="1.5" fillcolor="moccasin" label="ConnHost" ]
+        "(blitter.com/go/hkexsh.Session).TermType" [ label="TermType" penwidth="1.5" fillcolor="moccasin" ]
+        "(blitter.com/go/hkexsh.Session).Cmd" [ fillcolor="moccasin" label="Cmd" penwidth="1.5" ]
+        "(blitter.com/go/hkexsh.Session).AuthCookie" [ label="AuthCookie" penwidth="1.5" fillcolor="moccasin" ]
         "(blitter.com/go/hkexsh.Session).Status" [ fillcolor="moccasin" label="Status" penwidth="1.5" ]
         
     }
@@ -95,132 +95,106 @@ fontcolor="#222222";
         fontname="bold";
 rank="sink";
 label="[hkexnet]";
-tooltip="package: blitter.com/go/hkexsh/hkexnet";
+URL="/?f=blitter.com/go/hkexsh/hkexnet";
 penwidth="0.8";
 fontsize="16";
+tooltip="package: blitter.com/go/hkexsh/hkexnet";
 style="filled";
 fillcolor="lightyellow";
-URL="/?f=blitter.com/go/hkexsh/hkexnet";
         
-        "blitter.com/go/hkexsh/hkexnet.Init" [ penwidth="1.5" fillcolor="moccasin" label="Init" ]
+        "blitter.com/go/hkexsh/hkexnet.Init" [ fillcolor="moccasin" label="Init" penwidth="1.5" ]
         "blitter.com/go/hkexsh/hkexnet.Dial" [ penwidth="1.5" fillcolor="moccasin" label="Dial" ]
         
         subgraph "cluster_*blitter.com/go/hkexsh/hkexnet.Conn" {
-        fontsize="15";
-fontcolor="#222222";
-labelloc="b";
-style="rounded,filled";
-fillcolor="wheat2";
-label="(*Conn)";
+        label="(*Conn)";
 tooltip="type: *blitter.com/go/hkexsh/hkexnet.Conn";
-penwidth="0.5";
-        
-        "(*blitter.com/go/hkexsh/hkexnet.Conn).WritePacket" [ fillcolor="moccasin" label="WritePacket" penwidth="1.5" ]
-        "(*blitter.com/go/hkexsh/hkexnet.Conn).SetStatus" [ fillcolor="moccasin" label="SetStatus" penwidth="1.5" ]
-        "(*blitter.com/go/hkexsh/hkexnet.Conn).Close" [ fillcolor="moccasin" label="Close" penwidth="1.5" ]
-        "(*blitter.com/go/hkexsh/hkexnet.Conn).SetupChaff" [ fillcolor="moccasin" label="SetupChaff" penwidth="1.5" ]
-        "(*blitter.com/go/hkexsh/hkexnet.Conn).EnableChaff" [ fillcolor="moccasin" label="EnableChaff" penwidth="1.5" ]
-        "(*blitter.com/go/hkexsh/hkexnet.Conn).DisableChaff" [ fillcolor="moccasin" label="DisableChaff" penwidth="1.5" ]
-        "(*blitter.com/go/hkexsh/hkexnet.Conn).ShutdownChaff" [ fillcolor="moccasin" label="ShutdownChaff" penwidth="1.5" ]
-        
-    }
-
-        subgraph "cluster_blitter.com/go/hkexsh/hkexnet.Conn" {
-        tooltip="type: blitter.com/go/hkexsh/hkexnet.Conn";
 penwidth="0.5";
 fontsize="15";
 fontcolor="#222222";
 labelloc="b";
 style="rounded,filled";
 fillcolor="wheat2";
-label="(Conn)";
         
+        "(*blitter.com/go/hkexsh/hkexnet.Conn).WritePacket" [ label="WritePacket" penwidth="1.5" fillcolor="moccasin" ]
+        "(*blitter.com/go/hkexsh/hkexnet.Conn).Close" [ fillcolor="moccasin" label="Close" penwidth="1.5" ]
+        "(*blitter.com/go/hkexsh/hkexnet.Conn).SetupChaff" [ fillcolor="moccasin" label="SetupChaff" penwidth="1.5" ]
+        "(*blitter.com/go/hkexsh/hkexnet.Conn).EnableChaff" [ fillcolor="moccasin" label="EnableChaff" penwidth="1.5" ]
+        "(*blitter.com/go/hkexsh/hkexnet.Conn).DisableChaff" [ fillcolor="moccasin" label="DisableChaff" penwidth="1.5" ]
+        "(*blitter.com/go/hkexsh/hkexnet.Conn).ShutdownChaff" [ label="ShutdownChaff" penwidth="1.5" fillcolor="moccasin" ]
+        "(*blitter.com/go/hkexsh/hkexnet.Conn).SetStatus" [ fillcolor="moccasin" label="SetStatus" penwidth="1.5" ]
+        
+    }
+
+        subgraph "cluster_blitter.com/go/hkexsh/hkexnet.Conn" {
+        style="rounded,filled";
+fillcolor="wheat2";
+label="(Conn)";
+tooltip="type: blitter.com/go/hkexsh/hkexnet.Conn";
+penwidth="0.5";
+fontsize="15";
+fontcolor="#222222";
+labelloc="b";
+        
+        "(blitter.com/go/hkexsh/hkexnet.Conn).Write" [ fillcolor="moccasin" label="Write" penwidth="1.5" ]
         "(blitter.com/go/hkexsh/hkexnet.Conn).Read" [ penwidth="1.5" fillcolor="moccasin" label="Read" ]
         "(blitter.com/go/hkexsh/hkexnet.Conn).GetStatus" [ fillcolor="moccasin" label="GetStatus" penwidth="1.5" ]
-        "(blitter.com/go/hkexsh/hkexnet.Conn).Write" [ fillcolor="moccasin" label="Write" penwidth="1.5" ]
         
     }
 
     }
 
         subgraph "cluster_blitter.com/go/hkexsh/logger" {
-        style="filled";
-fillcolor="lightyellow";
-rank="sink";
-label="[logger]";
-tooltip="package: blitter.com/go/hkexsh/logger";
+        rank="sink";
 penwidth="0.8";
 fontsize="16";
 fontname="bold";
+label="[logger]";
 URL="/?f=blitter.com/go/hkexsh/logger";
+tooltip="package: blitter.com/go/hkexsh/logger";
+style="filled";
+fillcolor="lightyellow";
         
-        "blitter.com/go/hkexsh/logger.LogDebug" [ penwidth="1.5" fillcolor="moccasin" label="LogDebug" ]
-        "blitter.com/go/hkexsh/logger.New" [ fillcolor="moccasin" label="New" penwidth="1.5" ]
+        "blitter.com/go/hkexsh/logger.LogDebug" [ fillcolor="moccasin" label="LogDebug" penwidth="1.5" ]
+        "blitter.com/go/hkexsh/logger.New" [ penwidth="1.5" fillcolor="moccasin" label="New" ]
         
     }
 
         subgraph "cluster_blitter.com/go/hkexsh/spinsult" {
-        fontsize="16";
-style="filled";
-fontname="bold";
-rank="sink";
+        label="[spinsult]";
 URL="/?f=blitter.com/go/hkexsh/spinsult";
+rank="sink";
+fontsize="16";
+style="filled";
+fillcolor="lightyellow";
+fontname="bold";
 tooltip="package: blitter.com/go/hkexsh/spinsult";
 penwidth="0.8";
-fillcolor="lightyellow";
-label="[spinsult]";
         
         "blitter.com/go/hkexsh/spinsult.GetSentence" [ fillcolor="moccasin" label="GetSentence" penwidth="1.5" ]
         
     }
 
         subgraph "cluster_github.com/mattn/go-isatty" {
-        fontsize="16";
+        tooltip="package: github.com/mattn/go-isatty";
+fontname="bold";
+rank="sink";
 label="[isatty]";
 URL="/?f=github.com/mattn/go-isatty";
-tooltip="package: github.com/mattn/go-isatty";
-rank="sink";
 penwidth="0.8";
+fontsize="16";
 style="filled";
 fillcolor="lightyellow";
-fontname="bold";
         
-        "github.com/mattn/go-isatty.IsTerminal" [ penwidth="1.5" fillcolor="moccasin" label="IsTerminal" ]
+        "github.com/mattn/go-isatty.IsTerminal" [ fillcolor="moccasin" label="IsTerminal" penwidth="1.5" ]
         
     }
 
     }
 
-    "blitter.com/go/hkexsh/hkexsh.doShellMode$2" -> "blitter.com/go/hkexsh/hkexsh.doShellMode$2$1" [  ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode$2" -> "blitter.com/go/hkexsh.Restore" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(blitter.com/go/hkexsh.Session).Cmd" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).WritePacket" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(blitter.com/go/hkexsh/hkexnet.Conn).Read" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).SetStatus" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(blitter.com/go/hkexsh/hkexnet.Conn).GetStatus" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.main$1" -> "blitter.com/go/hkexsh.Restore" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.main$2" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).WritePacket" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.handleTermResizes$1" -> "blitter.com/go/hkexsh/hkexsh.GetSize" [  ]
-    "blitter.com/go/hkexsh/hkexsh.handleTermResizes$1" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).WritePacket" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.rejectUserMsg" -> "blitter.com/go/hkexsh/spinsult.GetSentence" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.reqTunnel" -> "blitter.com/go/hkexsh/logger.LogDebug" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.reqTunnel" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).WritePacket" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.launchTuns" -> "blitter.com/go/hkexsh/hkexsh.reqTunnel" [  ]
-    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).Op" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).Who" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).ConnHost" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).TermType" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).Cmd" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).AuthCookie" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh/hkexnet.Conn).Write" [ style="dashed" color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode$1" -> "blitter.com/go/hkexsh.Restore" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode$1" -> "(blitter.com/go/hkexsh/hkexnet.Conn).GetStatus" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode$1" -> "(*blitter.com/go/hkexsh.Session).SetStatus" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode$1" -> "(blitter.com/go/hkexsh.Session).Status" [ color="saddlebrown" ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode" -> "blitter.com/go/hkexsh/hkexsh.doShellMode$1" [ arrowhead="normalnoneodot" ]
-    "blitter.com/go/hkexsh/hkexsh.handleTermResizes" -> "blitter.com/go/hkexsh/hkexsh.handleTermResizes$1" [ arrowhead="normalnoneodot" ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode" -> "blitter.com/go/hkexsh/hkexsh.handleTermResizes" [  ]
-    "blitter.com/go/hkexsh/hkexsh.doShellMode" -> "blitter.com/go/hkexsh/hkexsh.doShellMode$2" [ arrowhead="normalnoneodot" ]
+    "blitter.com/go/hkexsh/hkexsh.rejectUserMsg" -> "blitter.com/go/hkexsh/spinsult.GetSentence" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh/hkexsh.parseNonSwitchArgs" [  ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh/logger.New" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh/hkexnet.Init" [ color="saddlebrown" ]
@@ -228,9 +202,17 @@ fontname="bold";
     "blitter.com/go/hkexsh/hkexsh.main" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).Close" [ arrowhead="normalnoneodiamond" color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "github.com/mattn/go-isatty.IsTerminal" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh.MakeRaw" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.main$1" -> "blitter.com/go/hkexsh.Restore" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh/hkexsh.main$1" [ arrowhead="normalnoneodiamond" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh.ReadPassword" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh.NewSession" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).Op" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).Who" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).ConnHost" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).TermType" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).Cmd" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh.Session).AuthCookie" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.sendSessionParams" -> "(blitter.com/go/hkexsh/hkexnet.Conn).Write" [ style="dashed" color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "blitter.com/go/hkexsh/hkexsh.sendSessionParams" [  ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "(blitter.com/go/hkexsh/hkexnet.Conn).Read" [ color="saddlebrown" ]
     "blitter.com/go/hkexsh/hkexsh.main" -> "(*blitter.com/go/hkexsh.Session).SetStatus" [ color="saddlebrown" ]
@@ -238,11 +220,29 @@ fontname="bold";
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+    "blitter.com/go/hkexsh/hkexsh.main" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).ShutdownChaff" [ color="saddlebrown" arrowhead="normalnoneodiamond" ]
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+    "blitter.com/go/hkexsh/hkexsh.doShellMode$1" -> "(blitter.com/go/hkexsh/hkexnet.Conn).GetStatus" [ color="saddlebrown" ]
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+    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(blitter.com/go/hkexsh.Session).Cmd" [ color="saddlebrown" ]
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+    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(blitter.com/go/hkexsh/hkexnet.Conn).Read" [ color="saddlebrown" ]
+    "blitter.com/go/hkexsh/hkexsh.doCopyMode" -> "(*blitter.com/go/hkexsh/hkexnet.Conn).SetStatus" [ color="saddlebrown" ]
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index c3e6309..7dedd8e 100644
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index 4ab81ad..f7c6f99 100644
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+<g id="edge44" class="edge">
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+<g id="edge48" class="edge">
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diff --git a/hkexsh/hkexsh.go b/hkexsh/hkexsh.go
index 8deac25..82a97cc 100755
--- a/hkexsh/hkexsh.go
+++ b/hkexsh/hkexsh.go
@@ -235,6 +235,8 @@ func doShellMode(isInteractive bool, conn *hkexnet.Conn, oldState *hkexsh.State,
 	//Read remote end's stdout
 
 	wg.Add(1)
+	// #gv:s/label=\"doShellMode\$1\"/label=\"shellRemoteToStdin\"/
+	// .gv:doShellMode:1:shellRemoteToStdin
 	go func() {
 		defer wg.Done()
 		// By deferring a call to wg.Done(),
@@ -272,6 +274,8 @@ func doShellMode(isInteractive bool, conn *hkexnet.Conn, oldState *hkexsh.State,
 		// client writer (to server) goroutine
 		// Write local stdin to remote end
 		wg.Add(1)
+		// #gv:s/label=\"doShellMode\$2\"/label=\"shellStdinToRemote\"/
+		// .gv:doShellMode:2:shellStdinToRemote
 		go func() {
 			defer wg.Done()
 			//!defer wg.Done()
@@ -628,6 +632,8 @@ func main() {
 			if err != nil {
 				panic(err)
 			}
+			// #gv:s/label=\"main\$1\"/label=\"deferRestore\"/
+			// .gv:main:1:deferRestore
 			defer func() { _ = hkexsh.Restore(int(os.Stdin.Fd()), oldState) }() // Best effort.
 		} else {
 			log.Println("NOT A TTY")
@@ -669,12 +675,16 @@ func main() {
 		// Set up chaffing to server
 		conn.SetupChaff(chaffFreqMin, chaffFreqMax, chaffBytesMax) // enable client->server chaffing
 		if chaffEnabled {
+			// #gv:s/label=\"main\$2\"/label=\"deferCloseChaff\"/
+			// .gv:main:2:deferCloseChaff
 			conn.EnableChaff() // goroutine, returns immediately
 			defer conn.DisableChaff()
 			defer conn.ShutdownChaff()
 		}
 
 		// Keepalive for any tunnels that may exist
+		// #gv:s/label=\"main\$1\"/label=\"tunKeepAlive\"/
+		// .gv:main:1:tunKeepAlive
 		go func() {
 			for {
 				time.Sleep(time.Duration(2) * time.Second)