Pratt and Whitney 744X Cargo doors... help?

So chapter 13-10 in the manual clearly states that I need APU GEN 2 or EXT PWR 2 to show as AVAIL in order to get my cargo doors to open. Okay, that's done. I also need some keyboard commands, so I map CTRL + "~" to OPEN ALL CARGO DOORS.I get nothing.Again, I have set the command and I have the aircraft using the appropriate bus configuration and nothing moves. I see the part about some of the animations taking 1/2 a minute, so I am waiting that long.Thank you sincerely,Jeff