One thing that seems to be an issue with "productivity" using Alibre is that many common actions take a lot of clicks. Many of these actions do not seem to NEED that many, often they exist because you have to go yet another level of window to find the control you want. Others seem to be almost "because we can". A couple common examples: Setting color on a part in an assembly. I counted that it takes at least 6 clicks to do that. 33% of those clicks are merely navigating to the color window, and navigating back. There seems to be NO reason of any significance why the initial window, that selects transparency etc, could not be combined with the actual color window, which would eliminate two clicks in the process. The full constraint window has not got the ability to "undo" the last constraint. So it is necessary to unleash a drum solo of clicks to close the window, delete the constraint, open the constraints again, and re-do everything (almost the same if you just edit). The abbreviated "quick" window seems to have an undo, there is no reason the FULL window should not have it. There are a number of additional actions that are "over-clicketized". It is time for those to be "de-clicked" so that they are not so onerous to use, especially for people who prefer to use menus, and avoid the "ribbon". I prefer the menus, simply because I go to the same place every time I need the same function.... simpler to deal with when you need to get work out.