Adding a User to a Channel/Let the User see Chat Channels

General
#1

Is there a way to manually add a user to a channel? Or is there a way to let the user see all chat channels available on the network?

#2

Is there a way to manually add a user to a channel? Or is there a way to let the user see all chat channels available on the network?

this mentions how to manage user in a channel: Channels - Upstra API
this will you to check all the channels: Channels - Upstra API

#3

Is there a way to manually add a user to a channel? Or is there a way to let the user see all chat channels available on the network?

this mentions how to manage user in a channel: Channels - Upstra API
this will you to check all the channels: Channels - Upstra API

Thank you for your response!