I can never quite remember what some of them do

[Anonymous]

It would be really nice if that when you open the constraints panel on the right hand side and right click on one of the constraint icons that a little help box would appear that gives you a quick and concise explanation of exactly what it does without having to leaving the sketch environment.

[keqingsong]

Thanks for your idea - we can improve the tooltips to include a brief description. We'll look into this and keep you posted on when the improvements go live.