Please note you cannot see previously generated watermarked print previews only those prints where you have selected Buy.
If you need to view or edit details on your print like the header, footer, legend etc. go to Prints.
From here you will see a list of all prints generated which you can search or filter.
To edit a print select Edit this print.
You will be taken to the print customise screen where you can change the header, footer etc.
If you need to change features on the map you need to go back to your plan, make your changes and then select print again.
You can then choose to use an existing frame as your print option.