Unfortunately we don't have any way to assign multiple logins or levels of account access to an E-junkie account. The only way to share access would be to keep using the main login email and password to log in to the account.
You should be able to log in at the same time from more than one location if necessary, just be careful not to save anything that someone else might be working on if you're looking at settings at the same time.
One thing that may be helpful to you, if you want your users/employees to be notified by email every time a sale is made, you can use the ' Common Notification URL' method of our Webhook Integration feature to use multiple emails as explained here: