How do I add someone to a PM after I have already created it
You should be able to see a list of users currently in the PM in the original message.
You can then select the invite and then type the users name you wish to invite to the PM. They will then receive a notification and be able to view and message in the PM that you’ve invited them into.
Hope this helps you out mate!
This is how you would do it.
But unfortunately TL1 can’t.
Darn I am TL one so that’s a problem