IBP Finite Heuristic enquiry

Is anyone able to tell me how I can get the IBP Supply Planner finite heuristic (FH) to consider consuming inventory at offsite storage locations? Currently the FH solution is deciding to produce more inventory at the manufacturing plant and is disregarding the vast amounts of inventory sitting at an offsite location. Ideally we would like the FH to take into account all offsite storage sites and thereby not producing excess product.

Hopefully there is some sort of configuration I can do to allow for this.

Thank you

Zoran