Hello @Afarag,
No problem about the language issues...
Would you be able to draw up what you want and post links to those pictures here?
So far, what I have understood is that if you have values like "Sum", "Count", etc. in a dropdown in A10, which ever value you select, you want that text string repeated in B10.
If that is correct, then you should be able to use "=A10" in B10.
But since that is very simple, I am assuming you are looking to do something more.