I can't figure out how to add my student rosters from google drive to the class lists on Idoceo. All of the options that they show in the instructions are not available on my ipad when I'm looking at the spreadsheets.

Hello, I think I just replied by e-mail.
iDoceo will only import XLS or CSV files, not Google Spreadsheets, you must save it as XLS first as stated here www.idoceo.net/index.php/en/howto/idoceoimport
Once you have those XLS files (in Google Drive or any other app) ‘ Open in’ iDoceo and select the import wizard
Follow the steps on screen and you will add those students in no time.