Is there something similar to the Explorer perk?

[srbindy]

I'm level 50 at this point and just wanna go around and find all the locations, is there a way to mark all locations on my map without being able to fast travel to them?

[Rip Van Winkle X]

There is a companion mod called Ellen who if you max affection gives you the explorer perk. Not only will the maps of the main game are given to you, but also all modded new lands mod markers are given to you.

[DouglasGrave]

The console command: TMM 1,0,1

If I'm reading the wiki list of console commands correctly, this should add all travel markers as unmarked. I don't know if it resets ones that you've already found or not, since I haven't personally played around much with the TMM command.

[pike]

Originally posted by Rip Van Winkle X:

There is a companion mod called Ellen who if you max affection gives you the explorer perk. Not only will the maps of the main game are given to you, but also all modded new lands mod markers are given to you.

ellen is a well made mod with i nice side quest, the voice acting is pretty gosh darn good too.

[Yhwach]

"Mod"
And no, there isn't a perk that unlocks all of the locations, but the command that douglas stated will add all of the locations but not necessarily discover them.
And TMM does take priority, so all of them will be unmarked.