Q.Dwarf Jade tree
When and how should I go about pruning my Dwarf Jade tree? It is a mature tree we have had for many years, and would like to see more blooms than we do.

Congratulations on seeing Jade blooms. They are not commonly found. I have had 2 large jade plants for over 10 years (The plants themselves are 20+ years) and have never seen even a hint of bloom. I'm attaching a link to an article that gives you some info on how jade plants flower. Good Luck!
https://www.gardeningknowhow.com/houseplants/jade-plant/getting-a-jade-plant-to-bloom.htm