Introducing: UMAPINFO Designer   I notice many threads where users find UMAPINFO difficult to use, or its options hard to understand. There are many caveats that are not obvious. I would like to help make it easier to use.    UMAPINFO Designer is a tool to help you create UMAPINFO for your WAD files and customize gameplay to your liking.   I have tried to build in all the "gotchas" so that you have a clear idea of how the WAD will play as you design the UMAPINFO.