To cap a head, you have to completely remove it from the riser. In order to convert to drip you have to remove the entire sprinkler, not just the top or nozzle. There are several options when it comes to water distribution. You could use a six outlet manifold, it all depends upon what you are watering. Sometimes a manifold will do the trick, other times you have to run a length of tubing and tap into it with individual drip emitters to water specific plants. It all depends upon what you're trying to cover.