The KB numbers in the report consist of 2 parts. Part 1 which is simply informational for the end-user, and part 2 which actually does the check if the KBs are installed.
The part that your editing is Part 1.
Further down the query you will see a list of KBs that are checked. You can add or change KBs to that as you like.
Where tblQuickFixEngineeringUni.HotFixID In ('KB4520009', 'KB4520002',
'KB4520003', 'KB4519976', 'KB4519985', 'KB4520007', 'KB4519990',
'KB4520005', 'KB4520011', 'KB4093109', 'KB4519998', 'KB4520010',
'KB4520004', 'KB4520008', 'KB4519338', 'KB4517389')) As SubQuery1 On
tblAssets.AssetID = SubQuery1.AssetID