Mask and control-frame generation nodes for WanVideo/VACE workflows — supports 11 generation modes, source trimming, and merge-back with optical flow blending.
https://github.com/ethanfel/Comfyui-VACE-Tools
git clone https://github.com/ethanfel/Comfyui-VACE-Tools
comfy node install comfyui-vace-tools