- Copy the rule set.
- Paste the rule set (perhaps, below the one you want to examine).
- Disable the pasted rule set.
- Unlock the pasted rule set.
- When no longer needed, delete the pasted/disabled rule set.
I examine rule sets from the library this way all the time. Just remember to disable them after adding, or perhaps have a disabled staging rule set to put them under.
Anyway, all of our rule sets are unlocked. However, I have been thinking about what it would take to create a locked rule set, at least as an academic exercise.