add select all options

[ikramooe]

is there a way to add select all option instead of selecting option by option

[SuhaibKotb]

+1

[KasparRosin]

Pull requests are welcomed.

[Navi2016]

You could also do this by adding a group to the items and setting the ->groupSelect option. That way you can click on the group and it adds all items.

If you would name the group Select All, that would kind of fake it :)