Joystick primary/secondary doesn't seem to do anything

[Akadion]

I'm trying to configure my joystick so I can use different axes for rockets and spaceplanes - for instance, I like to use the twist axis for rotation for rockets but have that control yaw in spaceplanes, and use left-right for yaw in rockets but roll in spaceplaces. I thought that I could use primary/secondary for this, but there's no way to swtich between the two modes. If I try to set the axes to be different for docking vs staging (and just plan on using docking for spaceplanes) it doesn't save the setting, meaning I have to quit back to the main menu and reconfigure my joystick if I'm switching from rockets to planes (or use software that will remap for me) just as before.