Key Assignment for Cockpit

[Hopper64]

I forgot how I did this before. I have my MS FF2 stick with fly by and external views assigned to a couple of buttons, but after using those in the game, I am having difficulty getting back into the cockpit. There is an "inside view" I have assinged to another button on the stick, but it doesn't seem to work after being in an external or fly by view. I can't remember what I am doing incorrectly. Ideas? Thanks.