Hi anthony, yup they are definitely useful! I am glad to have them although it has taken a whole lot more work than I had thought it would. I'm still working on the last piece of them right now.

I did a survey of various 2D CAD programs a bit ago and I was surprised at how annoying they all were. I didn't find one that I really liked. Maybe they've just been around too long and accumulated too much bloat. I'm sure they work fine if you stick with them.

- Michael