I updated the software of the control unit to version 2.00, but I can't create new users in the SETTINGS - USER MANAGEMENT menu.

The update of the control unit software to version 2.00 must be strictly carried out using the EasyTool software version 3.1 or later, which contains all the updates required for the management of the new menu. in this case, just import the control unit database with EasyTool 3.1 or later, export it to a file by selecting VERSION "DATABASE db1" and then reset this file as the control unit database and upload it to the control unit (where it will automatically be converted to "db2"; this double procedure allows a PC to update all the pages of the menu by importing them from the database file, and then exporting them in the correct format to the control unit.