Batch editing

[Acenoid]

Hi there!

I have searched for this feature request and I'm surprised nobody asked for this.

It is at times very tedious to edit multiple topics. This could be improved with some "batch" Tool that would allow to edit with following changes:

1. Batch edit mode
- It is now possible to select multiple topics, if a topic is selected that contains other topics inside a popup should offer to include <checklist of all categories inside> categories residing in this topic.

- After the selection has been made, all edits made in one topic apply to all selected, e.g. changing the category, modifying tags / adding snippets... etc

- I realize that not all actions can be permitted: moving things is tricky, however adding and removing should work. Even if it fails (because tag xyz is not present in one of the other topics it should still continue to follow the batch request as much as possible)

2. Predefined batch operations
- same selection as above, some options that to some predefined batch operations like:
- delete all tags
- sort sections ascending/descending
- sort all snippets ascending
- reveal / conceal
- remove container
- put selected topics into container ---> will provide popup to select new container

I will think about more batch possibilities, but this would easy work with RW.