While testing graph track operations from the track context menu I noticed that many of the mathematical operations give the user two options: "Default" or "Configure...".

Selecting the "Default" option seemed to only copy the graph for the "Add" and "Subtract" operations and it reduced the values to "0" for the "Divide" and "Multiply" operations. This led me to suspect that the default value that was being applied to these operations was "0" and after checking with David it turns out that this is, in fact, the case.

I believe that the default values for track operations should be discussed or whether or not the default option should even be selectable.

When a user wants to apply a mathematical function to a graph track I don't think they would want to perform the function using a "hidden" default value, and certainly not by a value of "0".

I think the best option would be to remove the "Default" AND "Configure" option from the track operations context menus and upon selecting a mathematical operation the "Configure" box would automatically appear.

This is basically how the graph track operations work from the "Annotations tab" (forces the user to input a value) so it would be nice to be able to follow our own convention and remove user confusion with this story.