Topic management options

[MaxSupernova]

I think this is a sort of omnibus request for more snippet and section management options:

I am in the middle of entering a number of Mechanics Reference information, and I have hit a number of points where I realized a topic is too broad, and I'd like to make it into a number of smaller, more specific topics. "Create a new topic from this section" would be very handy.

Also related to the first suggestion, "Split this topic at this Section" would be nice. It would take all sections and snippets below the selected one and create a new topic containing them.

These can both currently be simulated by duplicating the topic and deleting the unwanted bits, but without bulk snippet operations it's tedious. So, I'd also add "Bulk snippet operations" (select and delete/move/copy a number of snippets/sections at once to the list.

I've also hit a point where I'd like to move a section from one topic to another. "Move this section to another topic" would be very useful.

[Zaphod Beebledoc]

+1 however many times is needed...