Ok, I realize this may be a dumb question but I have never seen terminals like this and they are quite different from the 209, 210, 0, 194 and 23 terminals below that are the type I am familiar with. I see two screws in the middle of the N2/N1/T1 block but do not want to loosen the existing wires if not necessary. I also see what looks like a phillips indentation in the black plastic over where each wire goes but this does not look like any terminal connection I am familiar with. So the question is how do I add a wire to the T1 terminal? Thanks!

This is for a Generac 8kw new model 5882.
Push down on the x .This will open the wire slot and allow you to insert the wire.