I've been using Carlson Survey since about 2003 and in the days when I was running IntelliCad, I recall all of the commands and setting options to be just like AutoCad.
"window' items to erase, try "PICKFIRST" set to on, lets you window or "select" objects?ÿbefore issue commands.
If you're unable to implicitly select objects (i.e. Window by selecting Left to Right, Crossing Window by selecting Right to Left), check to see if your PICKAUTO variable is set to 0 (off). Setting it to 1 (On) should restore the ability to select by implied window picks.
If you're unable to form a desired selection set, check to see what the PICKADD variable is set to (probably want 2):
Controls how entities are added to a selection set.?ÿCan be set to one of the following values:
- 0 = PICKADD is turned off, the most recently selected entity becomes the selection set and previously selected entities are no longer part of the selection set.
- 1 = PICKADD is turned on. Each entity selected is added to the current selection set.
- 2 = PICKADD is turned on. Each entity selected is added to the current selection set. If the Select command is used, keeps entities selected after you stop using the command.
Snaps can be toggled/enabled via the F3 function key and set via the function key short-cuts as illustrated in the Status Bar area (as illustrated at the bottom of the application).
I hope this information helps.
