Importing Users
Users, Groups, and permissions can be imported through spreadsheets. The formatting of the spreadsheet is the same used to import other data. However it can not change the Users and Groups Registries nor add new Attributes to them.
Import Users
The import of new Users using reference values is shown below. In this case it was used dummy references. Note that the import was made by the Registry and Attributes names.

Figure 1 (Click to enlarge/reduce)
You can also use the Registry references of User (06u (1)) and of their Attributes (2). These reference values are fixed for all Accounts INubem. Notice that the Attribute Name was used as reference to import data (3).

Figure 2 (Click to enlarge/reduce)
Import Groups
Groups can be imported exactly as the User. However it is more interesting to jointly import Groups with Users who belong to them. To do this it should be noted in the import screen that the import will be associated. See the figure below as is marked that the Groups import will be made jointly with the associated Users.

Figure 3 (Click to enlarge/reduce)
Groups are in columns A, B and C (1), and the Users in the others (2). References to the Registry Group (05g (3)) and their Attributes (4) are fixed for all accounts. Groups are imported using dummy references. These are only two Groups and their references are repeated (three times in the first (5) and twice in the second (6)) as associated with the first Group are three Users, and two to the second. The association between Users and Groups is made by Import Command parent attribute (7) whose Attribute reference is 22. This is the Attribute that makes the association. This is also a fixed reference for all accounts.

Figure 4 (Click to enlarge/reduce)
Import permissions
Access permissions to Registries and Screens are associated with Groups and Users. Give access permissions to a Group and then associate Users members to this group is the most flexible way of working with them. Let's do the import of permissions to Groups. For this you must select this option in the import screen.

Figure 5 (Click to enlarge/reduce)
In the following figure we can see in the same spreadsheets Groups(1), Registries (2), and Screens (3), associated in cascade. The contents of the cell that shows the Registry Import commands (4) indicates that they are associated with the Groups through a reference to the parent Attribute 23 (5), which is the Attribute that makes this association. The contents of the cell that shows the commands of the Screen (6) indicates that these, in turn, are associated with Registries through a reference to the parent Attribute 32 (7), which is the Attribute that makes this association.
Three groups are imported (8). Thier names are repeated as they are associated with different Registers. Note that the Registries also repeat themselves (9) when they are associated with more than one Screen (10). This tree structure, from left to right, allows to make cascade associations at multiple levels.

Figure 6 (Click to enlarge/reduce)
Permissions can be given directly to Users. On importation you must mark you are importing associations with Registries and Screens (1). In the spreadsheet, the Import Command parent attribute of Registry (2) is shown below. The Import Command of the screen (3) is the same as in the previous case, since the association Registry to Screen is the same.

Figure 7 (Click to enlarge/reduce)
Import Groups, Users and Permissions
You can import Groups, their Users and permissions in a single spreadsheet. In the import screen of Groups you should mark all associations.

Figure 8 (Click to enlarge/reduce)
In the spreadsheet below are imported four Registries (1): Group, Registry, Screen, and User. Note that Import commands (3) combine both Registry as User to the Group. We are simultaneously creating three Groups (4). Each Group is associated with some Users (5). The first Group to 3 Users, the second and third to 2 Users each. At the same time the Group is beaing associated with the Registries and Screens, giving the permissions. The Registry repeat (6) when more than one Screen is associated with it.

Figure 9 (Click to enlarge/reduce)