Sheridan,
I had the same question with a Den Red Emperor. Here is the thread:
Den. Red Emperor 'Prince'
Jerry Meola, Pelican Coast Nursery, the source of my plant, suggested leaving some cane attached in an email, which I can't find
But my two large keiki were so close together on the same cane, that wasn't feasible. To date, my two removed keikis are doing good and growing.
When you are ready to trade some keikis, let me know
Charlie