Custom Roles For User Access

It would be great to develop the User Roles a bit more (Settings - Organisational & Financial - User Access), and have the ability to create your own. Although Sage has set up some default ones to use, none of them match the roles that I have for my team. If we had the function to create our own, it would be easier that just using the Copy function, as you know that if you add something to one person, it rolls out straight away to everyone, and no one is missed.