I've had a quick fix in mind for opening up our background options for a while now...
Add in the "LAYER INFO" button to both, Instant Drummer and Backups. This way, we can automate the gain to bring in exactly which parts we like from different samples and Instant Drummers. With 4 REX loops and the Instant Drummer all running simultaneously, the possibilities for this are just about endless....an opening cymbal from an Instant Drummer, followed by tom rolls from a REX file and a snare hit from another REX file, etc. etc. all inside of a single riff! I think this option would open up RiffWorks in a big way!! Imagine how creative we could be

If we went a step further and made it possible to run more than one instance of an Instant Drummer inside a single riff or, layer it could get even more insane. There are other uses for this as well, such as, when you use an "ending" part from a drummer and you don't want it to repeat. As it is now, if your loop is too long the ending will play multiple times. Gain automation via the INFO LAYER would remedy that problem.
For those who haven't tapped into the great Jedi power of the info button and thus, have no idea what I'm going on about, read about it here:
http://www.sonomawireworks.com/guide/index.php/Gain_Automationand here:
http://www.sonomawireworks.com/newsletter_sep_06.php#columnI hope you guys @ Sonoma Wireworks will give this some thought. Maybe you've already thought of it? My hope is that it isn't too difficult to implement into a future release

Rich