Question - I accidentally bulked filled the register for the whole week instead of the Friday, how can I undo this?
Answer - When you first click fill spaces, you will have had an undo button. But, once you refresh your page this is gone, so look out for this going forward if you make this error.
However to fix this once you can no longer "undo" Go to Reporting>Reports>Attendance>Attendance Audit and you will see what codes were there before you bulk filled. Use this as guidance when re populating the register in Register>Manage Register. Please be aware when using fill spaces, it will fill the entire date range you have on your page you need to adjust the dates before hand the prevent this going forward.