When enabled, the "No Edit For Callers" function will prevent users with the permission set "Caller" from being able to modify any field names when a lead is fed to them.
You can find No Edit For Callers by navigating through SYSTEM >> PLUGIN
When the plugin is deactivated, a Caller user privilege can select the Empty section and be able to edit, add or delete information, like the example below with Address 2
Under the Installed Plugins section, it displays the available plugins for DaFeeder and their status. This is where configuration to activate or deactivate a plugin in DaFeeder is found. Each plugin contains an official name and a brief description.
Simply select 
or 
. After making a selection the page will automatically refresh applying the change immediately.