Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 388.13
Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-10 23:38, hash: rBa0608340ae14
Short description of error
For group menus, can't assign shortcuts by right click, and no python tooltips on this. maybe it's not bug, but really need it.
Exact steps for others to reproduce the error