Adding a sheet
You can add a sheet by clicking the “+ Add Sheet” button at the top of the sheets preview panel.
Copying a sheet
In the sheet preview panel, hover over the sheet you would like to copy, then click the “Copy sheet” icon.
Copying a sheet from a different diagram
Please open the diagram you want to copy elements from and a blank diagram.
Select everything on the sheet you want to copy by using the keyboard shortcut Ctrl + A (Command⌘+A for Mac), then copy all objects by Ctrl + C (Command⌘+C).
Go to the target sheet of the new diagram and paste the copied contents using Ctrl +V (Command⌘+V).
Deleting a sheet
In the sheet preview panel, hover over the sheet you would like to delete, then click the “Delete sheet” icon.