You configure a user account group to only allow the use of classic function block editor and views and turn off the possibility to use Builder for Function Block.
In WorkStation , in the System Tree pane, select the EcoStruxure BMS server.
In the Control Panel tab, select Account management .
In the Server list, select the EcoStruxure BMS server.
In the Domain list, select the domain the user account group belongs to.
In the User Account Groups list, select the user account group.
Click Policies .
Select “Only use classic mode for Function Block Programs”.
Click Save .