Thanks Ray
I think it might be my misunderstanding of the extension; I have the mysqli server extension pack, which I thought was now unnecessary as the facilities are now available in DataAssist - so I used the 'repeat selection' and 'multiple update' links from the webassists|DataAssist menu
I've reapplied everything, using the links from the webassist|MySQLi
I now get the following error:
Fatal error: Uncaught Error: Class 'WA_MySQLi_Query' not found in /home/sites/sweens.uk/public_html/admin/modals/modal-mainpages-sort.php:16 Stack trace: #0 {main} thrown in /home/sites/sweens.uk/public_html/admin/modals/modal-mainpages-sort.php on line 16
Updated page attached.
Thanks
Chris