Hi @nan
Thanks for the reply and the sample. The upper branch, I could make it work.
Not so the lower branch, though your Column List Loop is ingenious. In the Column Appender node, all is fine.
The Line Plot node did not respect the colour information of the values (the upper branch was of columns).
I could not find a setting to make it obedient to the value/cell colours. If I understood @armingrudd correctly in Color manager: how is colour applied? one has to employ the Generic ECharts View node with quite some “programming” if one needs dynamic column selection and more.
Do you agree that the Column Filter node is not necessary?