Redmine

I'm using Redmine Wikis in my projects and I appreciate their "history" feature, but there are some pages which are used as a notepads for further discussion about issues (think: RFCs) in which only the most recent version counts. Which brings us to a number of features I can think of:

• ability to mark Wiki page as non-versionable, ie. edits do not create new versions, they operate on the newest present (currently edited),
• ability to bulk delete whole Wiki page history (all versions without the most recent of course),
• ability to bulk delete whole Wiki history (just like above, but one button for the whole project Wiki).

Maybe there is already a solution I'm not aware of? I found #18295, #10852 and #1103 but in my opinion they do not cover that ideas.