User activity

I'd like to have the ability to assign -1 (screen background) or 0 (transparent) values to any pen. I understand this might cause havoc with some GDL coding since it already does on some objects anyway, but perhaps there's a way to add a universal ex...
Any GDL gurus out there know how to return the Pen Description and/or Pen Weight in a GDL script? So far, I can only track down a REQUEST command to return the RGB values.
Anyone discovered an effective way to generate new holes in an existing slab other than using a zero-slope roof or flat shell instead? Creating a hole in an 'existing' slab the traditional way doesn't give me the ability to designate that hole as dem...
This is a simple wish that I think would be a nice addition for the built-in marker objects: Often times, a section/elevation/detail/etc. marker has some sort of text associated with it...usually something like "sim" or "opp hand" or "mirr". Adding a...
Several months ago, there was a webinar that covered site modeling that incorporated use of the MORPH tool. I remember that it was an urban site with some sort of body of water in it. I can't seem to track down any information on the webinar. Does an...