Transition to mounted - how?

[FranningtonBear]

Hi wise OB friends!

I am a windowsill grower with all my collection being happy potted. However, I have one, NOID supermarket Phal. though that is determined to climb out of their pot! It grows and blooms well but I am having to anchor it with stakes and hairpins to stop it growing out of the pot within a few months, it's growth habit is so horizonal!

I know it's only doing what comes naturally but it is hard to manage and has had a few unfortunate accidents where less careful members of my household have knocked it. I'm thinking of moving it to mounted but I have no idea where to start. Do I need a specific type of mount? How do I attach it? Does it matter when I move it?

Please idiot-proof me!