Allow cell multi-select using SHIFT

Details: <p><strong>Testing:</strong></p><p style="margin-left: 40px;">- Display a parts-list from a project that has several parts (lets say, more than 5...)</p><p style="margin-left: 40px;">- Click to select the &#39;Description&#39; cell from the first displayed item in the parts list.</p><p style="margin-left: 40px;">- Using CTRL, click to select the last cell.</p><p style="margin-left: 40px;">- If both cell are selected, CTRL works fine.</p><p style="margin-left: 40px;">- Do the same with SHIFT.</p><p style="margin-left: 40px;">- If all cells from the description column are selected, SHIFT works fine.</p>