There is a separate profile for each game that the doomsday_engine supports. This way you can configure the games separately.
You can add, remove and duplicate your own profiles with the '+', '-' and Dup buttons located below the profiles list or in the context menu. The original game profiles cannot be removed. From context menu you can rename, hide and show profiles. The equally named profiles are allowed. The selection of the profiles to be showed is carried out by a modal dialog. You can't rename, duplicate, delete or hide the Default profile.
When you add a profile you get a dialog that asks you the name for your new profile.
The removing of a profile is always checked from you with an OK/Cancel dialog.
All the duplicated profile setting values are similar to the profile that was selected during the press of the Dup button. The new name for the duplicated profile is asked by a dialog.