Add named user roles to space and page permissions

Jira supports named user roles for projects, which helps simplify the process of assigning permissions to different users. With so many different permissions on Confluence spaces, it gets annoying having to copy the relevant permissions to each user or group based on how that user should use the space. Then, when the names are all sorted alphabetically, it's hard to tell who plays what role within the space: who are the "admins", who are the "editors", who are the "viewers", etc.

I would like to ask that a new named role feature be added to Confluence so that I can manually create roles for a given space, such as "Viewer" or "Editor", assign permissions to that role, then assign roles to users. It would also follow that the same roles for a space be available for restricted pages withing the space, effectively acting like a custom group available only within that space. This feature could exist alongside the existing permissions structure, in case people prefer the current approach.

A workaround is to create a global group within Confluence (or the upstream directory server(s)), e.g. "Custom Space XYZ Editors" and assign permissions to that group, but that requires admin input and pollutes the global group namespace. Instead, named roles within a space's permissions would not have either of these problems.