There are a number of text section shortcuts implemented by default on each platform, for example on macOS Control-A is "Move to the beginning of the line or paragraph.", and there are others that we do not currently implement.

Because I use a non-standard keyboard, not all testing is currently complete.

macOS(https://support.apple.com/en-us/HT201236):

• Control-A: Move to the beginning of the line or paragraph.
• Control-E: Move to the end of a line or paragraph.
• Control-F: Move one character forward.
• Control-B: Move one character backward.
• Control-L: Center the cursor or selection in the visible area.
• Control-P: Move up one line.
• Control-N: Move down one line.
• Control-T: Swap the character behind the insertion point with the character in front of the insertion point.
• Control-Backspace: Delete backward by decomposing previous character (for example a multi-codepoint emoji).
• Option–Left Arrow: Move the insertion point to the beginning of the previous word.
• Option–Right Arrow: Move the insertion point to the end of the next word.

@justinmc