How to let Administrators fully edit the sitemap?

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Hi There,

We've come across some weird inconsistencies with regard to what Administrators can and cannot do:

1.
Administrators can't copy a page and it's children (they don't get the option)

2.
Administrators can't delete a node that contains children (they have to delete the children one-by-one first)

Both these items seem really weird to us - the client is literally like: WTF!

Is there a way to allow the client to do these things?

Advanced Permissions looks like overkill for this basic stuff and the warnings around not being able to go back once it's switched on look scary.

Has anyone found a way around this?

Cheers