Apparently when you press play. There can be a button up above to add a client. Someone showed me this, but we couldn’t figure out how to get it to show up in my editor.
You can bind a separate hotkey though. How do you get this button to show up?
So the button there is an extension of the 3 vertical dots next to it. There is an option in that dropdown to set that button to be the primary button.
The add client button only shows up when the editor setting AllowLateJoining is true.
Click the three dots->Advanced Settings->search for Allow Late Joining.
It’s currently under General/Experimental/PIE.