How to edit review.

How do I edit portions of a review I posted? Specifically I want to add something to the ROS. Do I have to wait until the review is "Approved" by a Moderator before editing is possible?

You have 1 hour from when you post to edit. Just use the edit button as normal.
Your time is probably over.
Contact a mod to change after the 1 hour time.

Contact the mod that processed the review.
Provide the the requested addition/change in a cut and past type of format.
However, note that this is entirely at the mod's discretion.

Thanks guys.

Thank you gentlemen

All answers are correct