Pruning

You can cut the top and replant the top, or cut the top, remove the bottoms, and only replant the tops.

I suggest leaving the bottoms if you want more plant mass as both the newly planted top and the bottom will continue to grow.

I suggest removing the bottoms if you like the amount of that plant you currently have, because the bottoms do not look as attractive just as a rule.

Best is to cut the top and replant has a habit of putting out aerial roots like crazy and will be a mess soon.

Nice plant thought with constant trimming.

Jeff