💡Indent inline text on tab key pressed

1. Describe a problem.
When I press the tab key in a new line, it shows a toolbar but I'd like the text to indent as a nested block.

2. Describe the solution you'd like. Mockups are welcome.
It's handy to make the inline text to indent after the tab key is pressed - this behavior can be seen in both Notion and Roam Research. Maybe make key shortcuts configurable to render customized actions?

3. Are there any alternatives?
Or make it as an Inline Tool? But as a markdown user I'd prefer to have quick typing without too many keystrokes for styling.