You have made a Helicopter Usermodel but you're seeing the Default Aircraft UI Layout? Worry not.
Helicopter Usermodel without Helicopter UI Layout and Keybinds.
For this you have to use expClass parameter in your unit's blk file.
Specifically, add the line expClass:t="exp_helicopter" into your unit's blk file.
Here an example from my Tiger UHT blk.
Once that is done and your file is saved it should look like the following:
Helicopter Usermodel now with correct UI layout and keybinds.