Adding photos to records that have already been submitted

My Records-> find the record you want, 2 notebook icons at RH side, click on the lower (edit) -> Add your photos _> submit

If the record is part of a list then  there is a row of data. At the RH end click on 'Add Pictures'.  May need some juggling to get to the end of the row.

I would just add, whilst you can add photos to already submitted records at any point, if you add photos to a record that has already been assessed by a verifier they have to check it again, so I would only add photos to records that haven't yet been checked.