Can I reestablish Z-height teleport bug in Zdoom 2.8.1?

[SilverMiner]

Is there a way to emulate the bug "Final Doom teleporters do not set Z coordinate" in Zdoom 2.8.1?

[andrewj]

Short answer is that I don't think you can have both the keep-height behavior and the teleport-fog effect at the same time.

 

If you don't care about the fog effect, then you could provide a translation lump with uses the Teleport_NoFog action with the fourth parameter (arg3) set to 1, for all the linetypes which normally use the plain Teleport action.  Though I don't know how to provide an additional XLAT table, apart from the crude way of modifying the existing xlat/base.txt and rebuilding the standard pk3 file.

[SilverMiner]

Xlat is a thing

[SilverMiner]

The thing didn't worked (