When using the bottom right corner of a cell to batch copy values across a range by dragging the corner, an error popup appears if a disabled cell is found inside the range that was dragged into. It is possible to reproduce this with this demo: https://demos.telerik.com/kendo-ui/spreadsheet/disabled-cells 1. Set the quantity column to disabled. 2. Select B3. 3. Drag the bottom right corner of B3 to D3. 4. See error: "Destination range contains disabled cells." There should be an option to allow that to copy into any enabled cells in that range and ignore the disabled ones.