OK, then it is no problem to trim the stems. Just make a clean cut adjacent to the main stem (trunk) to eliminate those "hangers". Dust the cut area with cinnamon. You can root those cuttings, but stake them to keep them upright. If you stake your plant, and it may take several stakes, your plants will growing straighter. Because the leaves are so plump and heavy, Jade needs staking. Don't overwater (infrequently is much better than regularly) and only fertilize in the spring and then again in mid-summer (1/2 strength 20-20-20 orchid fertilizer is what I use).