combo box

I am trying to make simple combo box where can select resolution to game. Screenshot: Screen capture - 572115564703039f720f8e8ec4b0a623 - Gyazo . What i need more?? Where it can read that it understand when select some resolution from combo box… And I have watched lot of tutorials

Problem solved

Gonna go ahead and post an answer anyhow in case anyone else runs into this problem.
This is how I did it but I have the small issue of not displaying the current setting. Not sure if that setting from the designer view is even exposed in blueprint.

This populates the box with supported resolutions.

Then implementing the combobox so that it can load and save to game user settings.