I just worked on a design and needed to add more shapes like holes etc and realized this is not possible in Fusion Drawing.
This is simething we do a lot in Rhino. Yes it sounds odd adding details in drawings but sometimes this is also quicker than adding those in 3D. Specifically during the prototyping phase. In Rhino after the 2d drawings are created then you can move things
around add parts delete parts etc.
Obviously this collides with the idea of drawings being driven by the geometry but sometimes the linking is also a limitation.
So it would be a great addition in drawing to add shapes like from sketch and add dimensions as well.