In what scenarios do you need this feature?

Currently, if I write, e.g.,
# Headline
It will be converted into a headline:

Headline

That is a great feature! However, if I want to change the depth of the headline, I have to use backspace to return in into non-formatted state and then writte # again. This takes more time than necessary

Describe the optimal solution

When I position my cursor on the beginning of the line, it should be possible to change the depth of the headline in the same way as it was created.
E.g.,
original headline was:
# Headline
Then I position my cursor an the beginning and write two ##,

Then the headline is automatically converted into H2:

This would make process of changing headlines more consistent and easier.

Describe the candidate solution

No response

Other information

No response