We already have Activity tracker (Which I personally never use). We already have Mining Ledger to see how much you mine (if that is your thing). I suggest an industry ledger/tracker that shows us the profit and loss against our BPOs.
I wouldnt mind if we have to manually add the BPO somewhere. We could track the expenditure (cost of the BOP, Research costs etc) against the profit (Market orders, sales of BPCs etc) to see what our overall profit and loss is on a given BPO.