Hello
I understand this could be a Joomla 3 issue so posting is also in Joomla Forum.
In Joomla 2/Virtuemart 2, I have a number of vm customfields with a long list of selection options.
As you can see from the screenshot, in Joomla 2 there is the 'Select All' feature.
Unfortunately, this is not included in Joomla 3 and I wonder if anyone can advise as to how to include it as adding each option individually is extremely time-consuming and try to do it via csv import to db involves a number of tables.
TIA
(http://www.4footyfans.com/2015/files/select_all.jpg)