Buy a second black market item without using the first
So I want to stockpile dynamite early in the game so I can blast opponents Patent labs to kingdomkong so I can get all the patents. However I can only seem to buy one dynamite at time. When I try to buy a second (without using the first one) it just activates the dynamite I purchased earlier and asks me which building I want to target. How do I buy a second dynamite without using the first one I purchased?