Basic Overview
Description  Stretches the curve(s) defined in the 'CurvesNode' over the X axis by a factor defined in 'StretchNode'. You can specify the X coordinate at where the stretching begins with the 'StartNode' parameter. The stretching begins at 0 by default. The X coordinates are represented by the Sequence level in 'CurvesNode'. The Y coordinates are represented by the values of 'CurvesNode'. 
Signature  STRETCH_CURVE(CurvesNode, StretchNode [, StartNode]) 
Parameters   CurvesNode: The definition of curves as a set of (X, Y) points in the coordinate system. X are values of the Sequence level in the parameter, Y values are the values of the parameter. It must contain the Sequence level.
 StretchNode: The stretch factor. It must not contain the Sequence level and only contain levels that are present in the CurvesNode parameter. Can also be a constant.
 StartNode: Where the stretching of the curve begins. It must not contain the Sequence level and only contain levels that are present in the CurvesNode parameter. Can also be a constant. It is an optional parameter. All the curves will start stretching 0 if omitted.

Example
Input CurvesNode =
Project  Sequence  Value 
A  0  0 
A  1  1 
A  2  1 
A  3  2 
B  0  0 
B  1  1 
B  2  2 
This input contains 2 curves. One for project A and one for project B.
Input StretchNode =
Input StartNode =
The project A will default to 0.
Output STRETCH_CURVE('CurvesNode', 'StretchNode', 'StartNode') =
A  0  0 
A  1  0.67 
A  2  1 
A  3  1 
A  4  1.67 
A  5  2 
B  0  0 
B  1  1 
B  2  1.33 
B  3  1.67 
B  4  2 