Hello @Daniel Figueira,

At the moment, that configuration is not available on the DataGrid component and you will only be able to activate it with a workaround. 

In order to be able to clear a cell from the grid with the delete key, the column must have the property isRequired set to False (set by default by Wijmo to "Text" columns but not the remaining ones), right now that configuration is not available on the DataGrid component. Nevertheless, you will be able to set it with JS. 

For further information about that property, you can have a look at the property isRequired on Wijmo's documentation.

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Right now, I would suggest the following workaround:

Add an onReady client action to the Screen. Inside, you might want to add JavaScript just like in the image below.

Code-------------------------------------------------------------

GridAPI.GridManager.Events.Subscribe(

     $parameters.GridId,

     ExternalEvents.GridEventType.Initialized,

     function (gridId, gridObj) {

    gridObj.getColumn('Sample_Product.Price').provider.isRequired = false;

    }

);

---------------------------------------------------------------------

Hope this answer is useful.

Best regards,

Tiago Pereira