Keys you can press to do special things.
#### Within a Paragraph Editor
**CMD-I**: Open documentation for this type of paragraph.
**CMD-M**: Change the Paragraph back into a Factory. This lets you change the type of the paragraph. For example, you can change a plain-text paragraph into a Markdown paragraph. The existing text is preserved.
**CMD-S**: Exit the editor. **ESC** also works, as does (for some types) hitting **RET** (or **RET RET** for Markdown).