The ability to have user specific DCA is great as it allows fine grain control of line items/modules without add dimensions to them, but...
As we are dealing with large models with increasing number of users the DCA modules themselves can become very large thousands of users by thousands of CC plus maybe a few other dimensions.
Often the user level is too granular and it would be useful to be able group users that have the same level of access. New User groups functionality or leverage the existing roles.
e.g.
users 1-100 (group 1) can write line a and read line item b
users 101-200 (group 2) can write line item b and read line item a
Currently this would take 400 cells, if we had groups it could be done in 4