I like mirroring features in CAD programs, at times I find it easier to model my designs using datum references, setting constraints with objects (parts, sub-assemblies, assemblies and drawings) and being able to mirror those about planes and data references I have created and with the constraints I have with those. I find when I model in that manner I can quickly model something and quickly change something such as a part out in an assembly with how I typically reference it. I would like to see these implemented into Fusion as well and be able to create a joint to a plane that I could put anywhere or offset and set up constraints referencing the plane as well as whatever object.
