Thanks Christopher. I guess if all else fails, read the *&*$_@# manual. It is odd the manual (pg 6) does state what you wrote but a gate is NOT listed on either the "amp" or FX settings. On the amp they have all choices available (JTM 45, Bluesbreaker, Plexi etc) as well as "Natural" but stop there. Gate is not available? Maybe it is on larger Code amps? I did notice though on the amp there are several choices for say "distortion" like pitch shift, compression, etc as well as "modulation" (phaser, tremelo, etc) so I'm going to play around with threshold on those, delay as well. There are quite a few things that can be done with this amp that I just discovered after your reply. Obviously if I were playing a large room/hall I'd prefer a JCM800 but for the small office in my house this this is a steal, so I welcome Marshall to the 21st century with open arms!!! Thanks again...

Update: I stand corrected, I believe the pre-amp function "Natural" is a way to plug in your own pedal, and the gate function is activated when doing so? This is a assumption since I haven't actually tried this yet. The "reverse delay" setting sounds like a sick little feature also...