ABAP code in BW

Hi all

Does anyone of you know of some short cut to get to know whether any custome code is present in the entire data flow for a particular data target ( ODS/ CUBE ) .

Also is there any other place except the following where ABAP code / custome functions can be inserted in BW ?

1 Transfer routine in infoobjects

2 Start routine in Transfer rules

3) Start routine in update rules

4) Transfer rules

5) update rules

6) infopackage selections

Thanks for the guidance