fall temperature drop

[Bythesea]

I have only a small space where I can put orchids to experience the natural fall decrease in day length and day/night temperature to induce blooming. The day/nightdrop in my house is enough for my Phals as they bloom every year and most have spikes now. However, I suspect this drop is not enough for some other genera and I cannot avoid some light in this area prior to bedtime. Is there a recommended order in which I should move various genera to my small space with outside temp/light conditions? And how long should I leave each group there before I can exchange them for the next group? Thanks.