Hi Marc - re: Edit mode - what would you expect to happen if 2 solids have been constructed using the same curve as input?

For example if you create 2 different lofts that have a curve in common - what would happen then if you moved one of the lofts and it took the input curve along with with it? Should the other Loft be recalculated to go through the moved curve? Should the input curve be cloned and become 2 different curves?

There are some other kind of complications as well - like what if the generator curves were edge curves from a different solid...

Another scenario I kind of worry about is something like this - say you have an outline curve that you extrude up into a solid. Now you want to keep this solid, but also make some changes to the outline curve and create a second new solid from it. So right now you can do this quite easily by just dragging the current solid off to the side somewhere which uncovers your original curves, make the edits, and repeat the extrude to make a second shape. If the original curves were automatically bundled with the solid and moved off to the side with it, some pretty simple situations like this have the potential to get somewhat confusing... That's one reason why I worry about doing too many kinds of fully "automatic" type operations like this.

I'll think about it some more though and see what might be possible - maybe once I have some kind of grouping type functionality it could be used to enable this kind of scenario.

- Michael