Restore multiple config areas instead of ALL or a single

[kosli]

Currently it is only possible to restore either the full configuration file or choose from the dropdown a single area to restore. It would be great if instead it would be possible to select multiple areas to restore.

My use-case is e.g. that I want to restore everything expect the SSL certificates -> I know I could remove that information from the configuration file before restoring, but it would be much more convenient to have instead of the dropdown for the restore areas a list which checkboxes.

[AdSchellevis]

The partial imports/exports are more of a remnant of the legacy system, which will likely be removed in the future, new components aren't available for partial restores either. (Consistency isn't guaranteed on partial restores).

[kosli]

Thanks @AdSchellevis
Good to know. Didn't find that information on the wiki.

[AdSchellevis]

@kosli you're right, we should add some context there opnsense/docs@32aa07d