deleting a lot of email

[PghLesbian]

I manage 4 gmail accounts using email app. I find it clunky to quickly delete especially spam, etc. So it builds up. With my blackberry, I could go to a date and use a "delete prior" function or I could sort by keyword, select all and delete. I haven't found anything comparable. I've cleared data using settings to start fresh but that's not ideal.

Am I stuck poking and deleting message by message? Twice as bad b/c deletes don't synch.

Thanks 4 any advice.