It would be amazing if I am putting multiples of the same part into an assembly if I could speed up the process. Select flush constraint and then select the same face on all 6 parts and bingo.
Also, a part is changed which triggers multiple errors in an assembly, it's an absolute pain having the notification keep popping up after every command. Make it notify me once with several errors and let me do my thing, the red cross tells me that some still persist.
And I want to toggle off mid point selection when dimensioning! In sketch and drawings, it's rare to want to dimension to that point, I want to toggle it off!