glad you found a solution.. thought id post how i work anyway
did you discover that you can just grab the line..?
i use my marquee tool as my secondary tool ( on the cmd key) so select the area then let go... tool changes back to arrow and i can just drag selection up/down from there.. then i can just drag that bottom line with the arrow whenever i need to change that selection.. also do you know that ctrl gives finer cursor movement resolution and ctrl+shift finer still
have fun learning..
Yeah, you just need the Normal Pointer tool grab the automation.
For general editingNot Automation)
You might look in to the General Preferences under the Editing tab and check "Marquee Tool Click zones".
This will make the tool work a lot like the Smart tool in Pro Tools with the defaul tool set. As the cursor is over the upper portion of a region it will be a pointer and in the lower section in will be the Marquee tool. With the Marquee tool you can place the cursor where you want to play from without having to go to the timeline.