How to propagate bele, large leaf edible hibiscus, from a cutting

From the Philippines: "Bele plant (Hibiscus manihot) - which is also known as aibika, slippery cabbage, Abelmoschus Manihot, Tonga Spinach and sunset hibiscus. This is edible plants or vegetables that easily grow in the Asian countries specially here in the Philippines. We grow it by cuttings and it will be harvest 2- 3 months from the day we planted."

From Hawaii:

Available for purchase:

https://wellspringgardens.com/products/kikos-crump-tm-south-sea-salad-tree-abelmoschus-manihot