In analytics Designer, how can I get a reference for a Calculated Measure inside the script?

Hi,

After creating multiple Calculated Measures in Analytics Designer, how can I get all of them or just one?

How can I get a specific Calculated Measure and set it in a chart dynamically?

I tried looking it up in the Developer Handbook, but it only shows how to reference a script variable inside the Calculated Measure, not the other way around.

Thank you!