Steps:

• First go to your post
• Select Hotspots accordion on settings menu

• By default there will be no hotspots

• First decide in which place you want to add the hotspots
• After deciding the place click on that place to add the hotspots
• Please make sure you add the hotspots on the model exactly

• NOTE: You won’t be able to add hotspots outside of the model
• Then save it to see the end result