You can duplicate more than one Condition at a time. Hold down the Shift (adjacent) or CTRL (not-adjacent) buttons to select the Conditions you want to duplicate, then click the Duplicate button.
You can duplicate a Condition and reassign all the takeoff associated with it on the current page to the copy. This is a huge time-saver if you realize you took off a room full of walls with an 8' Condition (or copied a room full of takeoff...) and really need it associated with a new, 10' Wall. See Related articles for more information.
If you're working with a bid connected interactively to Quick Bid, when you duplicate a Condition in OST, the Condition is duplicated in Quick Bid including all its pricing (Items).