How to execute a custom writer in Spotfire Analyst?

I am investigating how my team can extend the Spotfire Framework specifically by developing C# AddIns. I was checking out example projects included in the Developer SDK, specifically the "SpotfireDeveloper.CustomDataWriterExample". So what I did is I created a new "TIBCO Spotfire Extention_VS" using Visual Studio and copied all of the classes from the example project. I ran my project (i.e. TIBCO Spotfire Extention_VS1), it loads my Extention fine but I have no idea how to trigger that custom data writer now using the UI (I am new to Spotfire Analyst). Can someone point me to the right direction, please?

Should I be looking at the File -> Export menu?

Thank you in advance!

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