The two files generated by the BIND 9.x server dnssec-keygen program must be group owned by the server administrator account, or deleted, after they have been copied to the key file in the name server.

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.