Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 780 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Short description of error
I have alembic animation and there is no such possibility to editting the mesh or adding other object to him. The only way that works for now is approval of the Mesh Sequence Cache modifier but then I lose the animation so it makes no sense.
Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]