Help involving game end text.

Here: https://zdoom.org/wiki/Main_Page is everything you would like to know. You're welcome.

I assume you are using some kind of MAPINFO, but which one? What ports do you want it to work on?

I used WhackEd4 to change the text, then put the Dehacked file into Slade, I didn't know how to use MAPINFO to do this, so I just followed a tutorial. I want it to work in GZDoom. All the other changes I made in WhackEd4 carried over, so I'd assume this one did, I just can't get the end text screen to happen.

Ok, so I need two things now, how would I change the ending text using ZMAPINFO in Slade (for GZDoom), AND how would I use Ultimate Doom Builder (or slade) to make the end of my level lead to the end of the game, but not the list of the enemies, the ending text block. How would I make it so that the end of my level leads to said text, but also how would I change said text using ZMAPINFO?

Help would be appreciated because not having the assistance I need is preventing me from finishing my WAD.

I'm sorry I couldn't reply sooner, but thank you sincerely, this is exactly what I needed.