Hi everyone,It seems I can't manage to make any of the various "matrix" widget in the marketplace work because I can't understand how can I pass the correct data to them (I'm new with Mendix, and much more used to standard coding).So this is my problem. I have a big page which contains a matrix m-by-n of elements for which I have to register a value. I modeled this with a table on the DB ("ElementsOnPage") with the following members:ValueRowColumnMany-to-one reference to the "Pages" tableThe Pages can have a different size (and so a different number of "ElementsOnPage")I'd like to have a widget which displays in a matrix these values.What I tried to do is to create in the DataModel a set of non persistable entities with the structure required by the various matrix widgets in the marketplace (which is basically Cells with many-to-one relations to Rows and Columns). I can easily populate this with a microflow starting from my ElementsOnPage table.But then I can't understand how to pass these NPE to the widget themselves.Can someone guide me through it?