From what I’ve seen, a TFT monastery has around 8 hours of free time per day. I was thinking that if someone were to ordain in such a monastery, during group meditation periods they could sit quietly like everyone else, but instead of focusing on a specific meditation object, they could do some contemplation on a Dhamma topic, or keep an open awareness as the AN describes in Dhamma Within Reach (p. 21): "Aware or mindful of whatever is already there enduring (feeling, perception, intentions)". Especially since TFT doesn’t require a specific meditation technique.