In addition of one of my previous blogs I adjusted the function module RSZ_I_BASIC_KEYFIG_WHERE_USED and saved it to a new version.
The problem with the standard function module is that is requires to fill in a MultiProvider or CompositeProvider in order to get a result set.
Because I had the requirement to get a complete overview without any restrictions I used and changed the ABAP code. The new function module will only ask for a InfoObject name and will show you a list of all relevant queries.