shawnbulen
Some of SONAR's newer automation draw tools negate the need for this, as demonstrated in this post:
http://blog.cakewalk.com/sonar-quick-tip-draw-plug-in-automation-with-sonar-x2s-pattern-tools/
 

That was the technique I refered to. Unfortunatly for OP its only availble from X2 on.

Glyn Barnes
That was the technique I refered to. Unfortunatly for OP its only availble from X2 on.

 
Features come & go, but CAL abides forever!  
 
Leonard - 
Everything you described is straightforward in CAL.  And CAL would work without registry entry changes.  And you own it already because it came with SONAR.  
 
Follow the link above for a SIN wave example:

 
If you have any questions let me know.   CAL does have a bit of a learning curve.  
 
The CAL Curmudgeon