Ok, just a thought here. Maybe I'm ignorant of the full use of point filters, here, but I see a tool that might aid me.
When copying an object, or inserting one, I often have them aligned horizontally, or vertically, but wish to pick the X or Y value of varying points. Picture an elevation view with varying column heights, and wishing to insert column line labels. These column line labels will all be at the same vertical level, but to insert/copy an object to the remaining unlabeled column lines requires picking multiple points with differing Y values.
Maybe I'd have to write a LSP routine for this, but I wanted to check and make sure I'm not reinventing a wheel or just missing some OBVIOUS that's already there.
I'd like to be able to start a command, enter ".x" for "x of" and select -multiple- X coords, adding all those X coords to a list, and -then- selecting the YZ for -all- of those X coords, and copying multiple objects.
Does that makes sense? Clear as mud?
1.) Fire insert/copy command
2.) Select object to insert/copy
2.a) If copy, select base point.
2.b) If insert, goto 3
3.) Select "x of" point filter
4.) Pick multiple points to get the "x" of.
5.) Pick the remaining YZ coordinate, and then Autocad inserts/copies the original object to all of the entered coordinates.