Map Name Help

[Dark One]

Im new to mapping but The name that you select when your choosing a map to play at, how do i change it? Like the Bedroom...i made an edit to it and liked it so i saved it as another name and it looks completely different but the name is like this: here is the list
Bedroom
Bedroom  <---- My edit
Bedroom-Dark
Construct
Kitchen
Kitchen-Dark
Slate
Slopes

How do i change the Menu name??? Please help.... 

[Ad Bot]

[Oasis]

When you save it change the name of the Map at the bottom of the menu. Make sure you dont delete the location thing at the end just the name.