Hi PaQ, 
 
> Does it really have to be a seperate command ? I mean it looks really close of the 
> blend function for me, on steroid. 
> I'm pretty sure there are reasons you dont merge the 2 functions ...  
 
I may still attempt to do something like that, but the problem is that it could be possible to give regular 2-sided Blend a similar set of inputs when the 2 sides touch each other at their ends. 
 
When 2 functions can take the same inputs but do somewhat different things with them that's when it can be difficult to combine them in one single command. 
 
     - Michael 
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