It's up to you where you put it- I had it on the bottom of the enclosure and it was growing up. Some people prefer to have it the upper part of the enclosure so the plant can grow down.
This plant is undestroyable so it can be nearby a bulb or in the darkest corner.. it really doesn't matter...
If you have the standard screen cage get a wooden dowel that is able to hold the weight of the plant, make sure it is the correct length for the cage. Mine hangs about 2" from the top. Put the dowel in with screws, in predrilled holes, right through the cage. I also took super thin wire and wired mine to the edge at the top. I like to make sure things stay where I pt them. Good luck.
Another option is to get 25 pound+ test fishing line and thread it through the top edge of the cage, and tie it to the pot. Gives you a plant a "hanging magically in the air" look.
Another member posted this idea, I will be doing it on my next cham enclosure remodel.