As I mentioned in my previous post, I was unhappy with some aspects of the multiselection and the alignment - but I did a little playing around and now have something I like.

I looked to the Visual Studio IDE for inspiration on multiple selection - the selected components now have little boxes in the upper left corner, the black ones being “selected” and the white box being the reference component. By clicking (or right clicking) after things are multi-selected, the reference object can be shifted from one component to the next.

Moving over the alignment menu items now have greatly improved visual clues as well - it draws the reference line as well as the resulting bound for the impacted components. As the user moves over the menu items, the clues update themselves.

I must say - the more I use this platform I’ve written, the more I am liking it and the more I think can be done with it.