It looks OK.
Here is antivirus scan:
These 4 results from "noname" antiviruses are irrelevant.
Version 1.2.7.59 renames same named groups with numbers so I was using 1.2.7.57 which works fine.
But I will try this last version.
What bothers me is a lot of unnecessary fields in adding new MAC user screen. Some older versions did not have them but it is probably not possible to "reduce" the amount of fields while adding new user just by config file.