I was using AutoCAD a lot years before, I just thought it would be really useful to have some of these features below, I'm sorry if I have missed some of the features that are there already as I am still pretty new with AD:
*Node Manipulation
-it would be great if nodes could be moved based on a reference point, which could be the centre point of a circle or polygon with equal sides, centre of a line segment, or anywhere we could assign as a reference point. This point could also be the pivot point of the nodes wished to move, point where nodes could be moved closer to or away from.
-enter value for X and Y axis for accuracy of relocation
-assign one of the nodes as a pivot point when rotating an object and be able to enter the angular value.
*Additional Snapping Features
-be able to snap at the centre of a line segment
-be able to snap at lines intersection
I hope these will be included on the future updates! :)