More than 1one strange at the time.fitst timer autoflower??

If you need to use your grow tent as a drying tent I would only do one plant. Maybe multiple plants of the same variety so you can get everything to finish at the same time so you can switch the tent over for a different purpose. If you have another tent for drying then do whatever you want. I like variety. Just be prepared for the different varieties to mature at different rates which is not an issue with auto's.