Feature request: More controls for editing Triggers in Rules

I'm making this request again: "a rule could be run for testing by selectively running a particular trigger, rather than just using 'Run Actions'."

I just created a sunrise-based rule (based on your helpful suggestions in another thread: Bug in setting datetime var to a time string - #9 by bravenel) . Now I want to test it -- only about 5.5 hours to go for the rule to trigger.

It would be VERY helpful in testing rules if triggers could by activated individually just like actions can.