Would it be possible to set discounts of admin shopkeepers, depending on a players permission's

Say, some one has group.admin, so they get a 20% discount at admin shops

Not really possible right now to set up any kinds of 'discounts'. You could however create a separate 'admin group' shopkeeper that trades your discounted trades and only allows players with the right permission to access it.

For anything else, I am closing this ticket in favor of #763