Question about developing firecms

Due to the fact that I am in the decision stage, regarding the use of this cms in projects. I have a question.

Will adding-editing schemas, directly in the cms be available in self-hosted version and MIT license?
https://firecms.co/assets/medias/collection_editor_preview-bfb5a082bc0d3f37e7830d75407dd0c2.mp4