How do I make the Player play an idle animation?

[braing]

This is extremely frustrating. All I want is to make the Player play a certain animation. Pose packs on the Nexus say to go into TFC, select your player character and then enter PlayIdle [iDLENAME] or go into TFC and just enter Player.PlayIdle [iDLENAME]

I'm trying to play ANY animation here, but neither option works. Am I missing something?

Edited September 22, 2018 by braing

[JimboUK]

You have to be in third person before doing tfc, it wont work in first. If you are doing that then try installing this skeleton https://www.nexusmods.com/newvegas/mods/45229