It would be useful to be able to search the properties grid. I think it should be quick enough to just search as you type. Also it would be good to have previous and next arrows to scroll through the results.
I would like to see a "favorites" option in the property grid. This would allow us to check the star next to the rule name and mark it as a favorite. Then we would have a third sorting option to sort by favorites. I suppose the favorite sorting option could apply to both the categorized sorting and A-Z sorting.
There should be a different (set of) parameter(s) for IvBalloon that "simply" allows the balloon to be connected to the nearest drawing-curve. Currently, the user must name an edge and that edge must resolve to a drawiing curve in the view -- difficult to get this right. For IvBalloon, the easiest solution is just to allow a value of :Nearest for the "entity1" parameter.
Sorting by the values in the properties grid will give us the ability to more easily find rules based on the expected values. This is especially helpful when working on datasets by others who have not properly documented the rules in a way that it is easy to find the rules in question. In the case below, I know that the tank is 72 inches tall from my measurement of the Inventor model. If I could sort by the Values then I would be able to very quickly find that the associated rule is very likely TankHeight. My understanding is that the grid below is a DevExpress grid and column sorting is a property setting. That simple and quick change would be quite helpful for debugging.
Have an improve Project Editor. Let say DesignC is included in DesignB. If you include DesignB in DesignA then Design C is automatically included. Today I would need to inlude both DesignB and DesignC in DesginA. Maybe an option like (keep design hierarchy).