Feature Request show possible string transformation in a selectable preview

[AdrienHorgnies]

already exists, my bad

use case:

• As a user I want to be able to quickly change from any case to any case.

user story:

1. I highlight the word myWord I want to change the case of.
2. I press a shortcut key
3. A preview dialog window appear next to the word. The preview shows:
   1. myWord (this is the original world, used as a header)
   2. my-word (the second entry is selected and highlighted by default)
   3. MY_WORD
   4. ... (and so on)
4. Using the arrow, I highlight the 3rd entry MY_WORD and press enter.
5. the case of the original word has now changed from myWord to MY_WORD.