We are looking for the best way to have contractors help with updating transactions in Event Espresso. So for example if someone registers and pays an invoice later on by bank transfer, we would then use the Apply Payment in EE to update the transaction. We are hoping we can have it so that the contractor would only have read only access, so that they could search and look at registrations in EE but not be able to change or download anything (for example, not be able to download registration lists etc). Any suggestions much appreciated.