The plant is more like a vine, but am wondering what would happen if the plant is draped across the top of a few file cabinets and not allowed hang over the edge.
Arrowhead Plant Care
Certified GKH Gardening Expert
The vine like behavior is an indicator that the plant may not be getting quite enough light. Placing it on top of the file cabinets may help to get it more light and help it start to grow more upright. You may also want to give it a little trim to help encourage branching.