Slice your quartered ham if it isn't sliced already and put it in 1-2 large pieces of foil (large enough to wrap all the way around it - may need small piece for very top as well).
Fold foil up so just the very top is open.
Sprinkle brown sugar over top of ham and into slices.
Pour pineapple juice over ham and sprinkle cloves or push whole cloves into ham.
Sprinkle pineapple tidbits on top of ham. Drizzle honey on top if you want to add this as well (not totally necessary, sweet without)
Put a small piece of foil over the very top if needed to enclose.
Add 1.5 c. of water into your Instant Pot and add trivet to bottom. Lower ham into pressure cooker on to your trivet (make a sling to put on bottom to lift it back out if your trivet doesn't have handles).
Close lid and steam valve. Set to high pressure for 12 minutes (timing will vary slightly according to how large your piece is, this is for a quarter ham that's been sliced). Do a natural release for 10 minutes when done.
Release rest of pressure, lift ham out of foil and rest on a cutting board for 5 minutes.
Take trivet out and drain water in pot, put pot back into your Instant Pot. Empty the juices that are inside your foil into the bottom of your pot, set pot to saute low.
Add an additional 3 oz. of pineapple juice and 3 heaping tbsp of brown sugar into your pot and allow that to start bubbling.
In a small bowl add maybe 2 oz. of pineapple juice and 2 tbsp of cornstarch and whisk together....add 1 tbsp at a time to avoid clumping. Dump this "thickener" into your Instant Pot and stir/whisk together consistently until it is the consistency you want. Add more pineapple juice or a bit more cornstarch mixture if desired but will thicken in no time.
Finish slicing ham pieces all the way through, pour glaze over the top of each piece and serve!