Tell me, is there a feature for copying gantt strings to the clipboard, for example in tsv format?
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Not supported but should be very easy for you to implement until we support it natively.
https://bryntum.com/docs/grid/api/Core/data/Model#function-toJSON
Inspiration: https://stackoverflow.com/questions/8847766/how-to-convert-json-to-csv-format-and-store-in-a-variable