Would it be possible to move the active keys on the key chain to the top of the list
Or have an extra box added to the top only for active keys?

Searching through the entire list of keys can get a bit time consuming and moving the active keys to the top or into a separate area would make checking them a lot easier, faster and user friendly.

+1 If I never posted the exact same suggestion, I always meant to. Thanks PaK!

It might also help (eventually) to have the list sortable as inventory now is, separating conquerable stations, Player Capships, and who knows... maybe keys to shared inventories if ever implemented, or whatever shiny new things the devs give us that use keys. Being able to collapse sets & subsets would be so sweet, never having to look at inactive keys again.

I. Active Keys
a) Stations
b) Capships
c) shared inventories
d) hotel rooms, VIP lounges, Wholesale Warehouse Clubs, etc...

II. Inactive Keys (same subsets as above, but we'd all have it collapsed so why bother re-listing them?)

+1 to moving active keys to top of list

I'm not so sure about the sorting by usage though. In the future will a single key be able to grant access to various things?

It's already been proven that a single key can be used to grant access to all of the stations at once.

Yes, keys are intended to be flexible like that. Granting access to as many or as few things as their owners would like.

I agree with the notion of sorting by keys activity, last-used at least.