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ODB Postprocessing - Coordinates relative to a node?

ODB Postprocessing - Coordinates relative to a node?

ODB Postprocessing - Coordinates relative to a node?

(OP)
I have a model step over which i need to plot the motion of a part of my model. The step has 100 timesteps, and I have COORD set as a field output. So I'm using the 'create field data' tool, and creating a new field from existing fields as "s3f100_COORD-s3f0_COORD".
So far, it's working, but what I need to do is plot this field relative to the coordinate of a particular node. This node is defined as the reference point in the system I'm trying to model.
Is there some way I can subtract the COORD value from an individual node in the output viewer?

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