I have created a rule to apply versioning to inbound items within a space and all of its sub spaces.
Can this same rule be re used within different spaces?
Essentially a list of user defined rules that can selected and applied to space instead of recreating the same or similar rules a number of times to seperate spaces.
No, you can not re-use rules in this way at the moment unfortunately. There have been discussions on such a feature but there is no fixed timeframe for it at the moment.
Feel free to raise a JIRA issue for this improvement so you can track the progress.