New member, simple question

[spiff72]

Hello all,

New member here, current HP50g user who just ordered an HP Prime off eBay. I have been playing with the HP Prime windows app, and I have.a question about programming a simple inch to mm conversion that I had created on my HP50g.

I had created a small RPN program that I stored as 'inmm' so I could type in a value in inches and then tap the inmm soft key to output a value in mm. My program was:
<<25.4 * >>

Is there a way to do this on the Prime so I can have the same functionality as I had with the HP50g?

I know that there are user defined functions, but can these be assigned to a soft key? Or is there another way to do this?

Thanks!

EDIT: Corrected my "program" to change / to *