Regions are new in Krita Diffusion Plugin v1.18.0! Set up area-specific text prompts and control layers. They are linked to layer groups, and can be re-used thoughout your entire workflow.

Website: https://www.interstice.cloud
GitHub: https://github.com/Acly/krita-ai-diff...

This is an open-source plugin which you can run free on your local hardware. Cloud service is available for those who want an easy start.