Adjust individual dynamic markings

Hi,
There are a lot things I'd like to do with dynamics, but can't. Here are a few of them.
- There is no way to create, say, a forte mezzo-piano (fmp). Same thing as a fortepiano but it goes to mezzo-piano instead of piano. I've seen these in sheet music before.
- I'd like to adjust the volume of individual dynamic. For example, make a specific forte symbol quieter than usual. It's not entirely realistic to have forte the same volume level across different musical styles, and when quick dynamic changes are present sometimes MuseScore's current dynamics don't emphasize the changes as much as a performer would.
- All text typed within dynamic markings doesn't look the same as the original text. I would understand if letters that don't normally appear in dynamic markings looked different, but when I type an 'f' in a dynamic marking, it doesn't look like the 'f' that normally appears in a forte. Bolding the text makes it closer, but still not the same.
If these options could be added that would be amazing!