How do you open several as files in flash professional CS5 at the same time on a mac?

Can you open more than one file at the same time in flash professional CS5. mac OSX?
I can open them one and one and then have multiple windows, but never a batch of files…
Is it just me and the computers I work on?

I’ve never been able to open more than 1(one) additional .as file to the IDE, regardless if I select more in the finder? Is there a logic to this behavior, cause I can’t understand it? it’s 2011…