Hi @AndiK,
Thanks for reaching us.
You can add items to your context menu on your grid. To add the reported behavior to right click, with just need to use the block MenuItem_CustomOption of the Grid and on the event "ClickEvent" use a JS node with this API: GridAPI.Rows.GetRowData(gridID, rowNumber). You need to pass the GridId and the RowNumber. Check the image below:

Please check if this works for you.
Thanks
Bruno Marcelino