Does channel name exist?
N This condition can be used to check if a channel exists on the server or not.
It takes one parameter, which is the name of the channel to find.
A channel can still exist with no clients on it, if it is manually created by the Channel > Create channel with master selected by name / by ID actions, but "" or -1 is passed for the master name/ID.
The channel name must only be similar to match; for more details, see Unicode notes.
This condition will only create an error if you pass a blank channel name. In other scenarios, such as the server not hosting, it will simply return false.
In a Channel > On channel close event, the closing channel is considered to exist by this condition.
This condition does not change the currently selected channel.