How to do fade from one db level to another?

I have been using Audition for years, and I cannot figure out how to do something in Audition CS 5.5 that ought to be simple.  In my waveform editor, I want to be able to select an area of audio and adjust it's gain over time.  For example, fade the level from 0 db to 15 db.  In Audition 1.5 and 3.0, this was simple.  Select your audio range, choose the "amplify/fade" effect, click on the "fade" tab and enter your db values.  But I am going BONKERS trying to figure out how to do this in Audition CS 5.5!  Can anyone help me?  The amplify effect does not do fades.  And the Volume Envelope effect only does full fade out and fade in.