'Help' menu for self-made programs

[ailoher]

Hello all,

It's me again, posting a new question about programming my HP Prime...! I am programming a huge number of math methods for an exam, so I might need to have access to a sort of 'help' menu for each of them, so that I don't forget which kind of inputs/outputs I am expecting!

So my question is, is there any option to access to such self-made help menu in any moment of the execution of my program? So far I've only come up with the idea of displaying it using 'msgbox' command at the beginning of each method, but it would be more useful if there is any other option to access it once a certain button of the calculator is pressed up. Does anyone have an idea?

Thank you in advance, and best regards.
Aitor