+ AA6YQ comments below
OK, this is not a button. It is now enabled so I should never have to do it again.
+ When you have DXKeeper and your other DXLab applications configured to your taste, terminate all of them except the Launcher, direct the Launcher to create and populate a Workspace:
+ and place a backup copy of that Workspace someplace safe (e.g. on a thumb drive, or in DropBox or OneDrive).
+ Then when you next experience a catastrophic hardware or software failure - which is pretty much guaranteed to happen at some point -- you'll be able to quickly recover all of your DXLab application settings.