[Feature Request] Control model offsets and some others

[lllyasviel]

Hi great plugin. I played with it a bit and the memory optimization is really good. Some considerations should be put with higher priority:

1. The requirements for some mode like the segmentation is broken.

2. We really need a button to offset the weight inside the controlnet: that will immediately solve the distorted faces in pose mode and distorted edges in canny mode. This can be done by offsetting the weight copy inside the controlnet with user models and sd15. Right now all controls are targeted to SD15. These should be retargeted to user models.