Way back when, I had an issue with having to double-click the rectangle tool to add rounded corners to a rectangle object in Flash. Not sure who told me at MM at the time, but you can simply hold the mouse button when inserting a rectangle on the stage and hold down the up or down arrow keys to adjust the rounded corners *real-time*!
This was back in the Flash 4 days I believe, maybe it was 5, but anyhoo, I was creating a rectangle with rounded corners and a co-worker asked how i did that without using the prompt.
Thought you might find this tip useful! 🙂