A block node can be "like" a role (takes its settings) or "replace" it (its
links, place and settings too; LanPaint's sampler for the KSampler). $save is
the output node the picture reaches, past a stitch. Upscale blocks take an
upscale model this ComfyUI has; control blocks a ControlNet whose base fits the
canvas's model, and the picture to follow copied into the input folder. The
directory is grouped by job, a few words a block, to keep begin_task short.
Drop-down choices are read in both forms of ComfyUI's node list.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
