CHOOSE with one more button? [Programming]

[GenisToii]

Hi everyone!

I just created my account here after looking some of your posts in the Old Forum. I wanted to ask about the CHOOSE command in HP 49 Series.

I have a little program in a var that alllows me to choose between diferent other programs that I use for choosing which formula I want to calculate . I was wondering if there is the possibility to modify (or create) a CHOOSE structure that includes one more button than "OK" and "CANCEL". I would use this button to view the formula that will be used if I choose the highlighted selection in the CHOOSE structure.

I'm pretty unsure that it could be done but I'd prefer to ask to the experts.
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Thanks and sorry if my explanation it's a little confusing.

[YEDERF]

Hello!
  put option to show you your equation in USER RPL is not possible, you would have to use SYSTEM RPL, but can this program showing video.