
this is something that I would like to see but is not easily done.
My first idea is something that i'm sure many people would like and would use. while my second idea is a bit more obscure and more something that i would personally like.
I would like the implementation of macros that that can refer outside information like a character sheet, So that i might write one macro and then when it's used my a player it'll access there character sheet and use that information, just to make skill rolls easier and require less time looking up numbers (D&D 3.5) also so that I can make random hidden checks for things like will saves or fortitude saves for the group that they wouldn't notice unless they failed a check.
my second request would be to have macro interactions with the card system, this is because I'd like to play a card base RPG through roll20 but currently there is no good way. this is obviously more difficult since you'd have to attach the macros to each card.