[Closed] First script. Help me work out the kinks

I just started learning maxscript three weeks ago. My goal was to create a maxscript that work like a 2×2 ffd that could snap to an ePoly quad. It ended up working differently, but it kind of does what I intended. Basically now it is a script that will align a 5 nodes to the corners and faces center of quad. playing around with it, you can do some pretty neat things if you set up wiring parameters/position controllers/modifiers between the nodes, I’ve been using it to make parametric windows and massing studies. If you can do something fun with it I’d loke to hear about it, maybe eventually I can put up some videos of my script in action.

However, I'm getting ahead of myself, before I can do any of that I need some help from the maxscript gurus:

1)the scripts face picking code breaks down on ePoly objects that don't have only quad faces. While it does let the user pick unselected ePoly node faces, I'd be willing to let that go for the sake of stability. When in subobject face mode, what functions are being called when selecting faces, and can I easily access these through maxscript?

2)Originally I was saving the original selections as an array. That changed to selections sets which max already has a fine way of defining. But now selections sets can't be merged between scene files (or do I just not know how to?). so I'm thinking I should migrate the definition selections over to groups, since groups can be merged. Are groups the best way of saving this sort of information? can the nodes be manipulated in maxscript despite being frozen in max? I looked in to container helpers as an alternative, but I don't get how're they're supposed to be used; they seem to be just glorified xrefs (I'm probably missing something here).

3)my delete corners option doesn't delete all the corners, I'm not sure whats going on here. It's not too much of a problem though.

4) the sort mechanism breaks down when a quad has non adjacent vertices sharing on the exact same axis. Actually its breaking down because it sorts the vertices compared to the face center, so it crashes when it sees 3 top corners or 3 right sides. I don't think I'm going to try fix this unless there is a simple solution, maybe I'll add a warning message, but for now just know it doesn't work on diamond shapes.

Also! I can't post attachments yet, if someone who can could pm me their email and would be willing to post a reply with the .mcr attached, it would majorly appreciated. In the mean time, some pics of the script in action: