Search drop-down lists in a column and change their value using an userform -vba

[TitoElan]

Hi! I have an user form like this one.

These cells have the same drop-down list as the user form combobox.
I need to search only the cells with a drop-down list and change their value with the one I set in the user form.
I am trying different things but without luck.

I would be really thankfull for some help :D

 

[TitoElan]

up :/