I hoped that those issues are gone in 7.5, but I have seen similar in 7.1.
The easiest method I found for this is to change the default filter into EDIT mode (by default it’s read only which prevents the scrolling to see the other filters) by running the below SQL query, saving a copy of it and then working on the copy (and changing it back to read only).
For sure this is nothing supported by Symantec and of course you should have a DB backup before doing it, but if things need to be done, then they need to be done.
To change this filter to EDITABLE mode, run the following SQL query against your Symantec_CMDB:
--
update Item
set Attributes =0
where Name like ‘All Computers without Software Update Plug-in Installed Target’
--
Now you can modify that target and see all the filters that apply. As now also the “Save Target As” button is available, you can save a copy of that target for use in a cloned policy. And that saved target you can modify to exclude any other filters as well.
Once you are done with cloning and copying, it would be good to set the “Attributes” value back to ReadOnly. So just run the above query again and set Attributes =18