TR_Travels_(Preview_and_Mainland).esp plugins may cause your save to be incompatible with updates (per the included README).
If you want all of the preview content, then enable them and disable the
TR_Travels.esp plugin. Also, be sure to load both plugins after
Unofficial Morrowind Official Plugins Patched.ESP in order to avoid landmass conflicts with Siege at Firemoth.
TR_Travels.esp plugins are optional but I do recommend using them. If you're doing the Graphics Overhaul list and prefer to avoid gameplay changes, then skip it.
TR_Mainland.esm TR_Travels.esp TR_Factions.esp
/home/username/games/OpenMWMods/Landmasses/TamrielRebuilt/00 Core /home/username/games/OpenMWMods/Landmasses/TamrielRebuilt/01 Faction Integration /home/username/games/OpenMWMods/Landmasses/TamrielRebuilt/03 Travel Network for Core and Vvardenfell
/Users/username/games/OpenMWMods/Landmasses/TamrielRebuilt/00 Core /Users/username/games/OpenMWMods/Landmasses/TamrielRebuilt/01 Faction Integration /Users/username/games/OpenMWMods/Landmasses/TamrielRebuilt/03 Travel Network for Core and Vvardenfell
C:\games\OpenMWMods\Landmasses\TamrielRebuilt\00 Core C:\games\OpenMWMods\Landmasses\TamrielRebuilt\01 Faction Integration C:\games\OpenMWMods\Landmasses\TamrielRebuilt\03 Travel Network for Core and Vvardenfell