I am wondering if there is a way to change multiple entries on the system info tab for multiple users. For instance, we have created a field named GlobalWatch Servers and want to be able to edit this field for 30 machines. Is there a way to do this in a group or must it be done individually by machine?
Yes you can.
You have to create a view to filter the machine you want to edit then click on the button "Bulk Edit Custom".
I think what you are looking for is "Bulk Edit Custom"
This can be done at: Audit --> Machine Summary --> Select all machines --> Click "Bulk Edit Custom" button.