Bulk delete all compensation history

We'll make a P2T for our customer, just after that we need to delete all compensation related data from the system or manipulate them with dummy data.

Is there a specific method to do this in bulk, otherwise we'll need to figure our each distinct business object and create HDL scripts to manipulate all salary and individual compensation data. If this is the only way, we're ok with updating the salary history but how we are trying to find a way to discover the current individual compensation items and method to update them.