as some of you remember, on the old TI-86 there is a custom button that allow the user to specify some function to build a personal menu. I find this feature very useful: one does not have to go searching the functions that are frequently used. My question is: Is it possible to do the same thing on a nSpire? I have two nSpire but still using the TI-86 because of this function!!!! I frequently use conversion operators between decimal and hexadecimal. On TI-86 I have customized the custom menu adding the conversion operators so this operations are really fast and comfortable for me. On the nSpire i cannot find such feature.