This dialog allows you to create additional sheets, delete sheets,
and to change the permissions associated with sheets (ACLs =
access control lists).
To create an additional sheet, press the button
"New Row", fill out the new row, and press "Save".
To delete a sheet, select the sheet in the
"Del?" column, and press "Save".
To change permissions of a sheet, select the sheet
in the "Edit ACL?" column, and press "Edit ACL". After
changing the ACL, press "Save". The Owner is the
person who is allowed to delete the sheet, and to set the
ACL. The Writers can modify the contents of the
sheet. The Readers can only view the contents of
the sheet, but not change it. All other users (except
administrators) do not even see your sheets.