setmacro symlog-tab 0 (col 40 if !r (last col +5) insert (// ))
setmacro symlog-return (firstnb scanf %[0123456789] set ln (\$scanf) last split down first inc ln insert (\$ln.) up first wright if c="Show" (col +2) down)
map zsL-p (goto block first find Show down while cb (overwrite (|) left down) unblock)