have a scene change on the click of a button, but have the scene be relative to a drop down menu?

here is what im trying to do.

select a scene from a drop down menu, and when i click a button, the scene i selected will be opened. I want a map drop down menu for a tower defense game, followed by a tower selection menu to keep the actions low. please help, or if you know a better way of keeping actions low please share.

A level select menu only needs 1 event. Name the level the same as a variable on the item you are clicking to select the level (if it is a dropdown, the dropdown selected text should be the same as the level name). Then use the Go To Layout by Name action passing in the variable from the item.