programmatically change 'multiple' option

[magrytos]

Hi, I was wondering if it's possible to change programmatically the multiple option. I would like to provide to a user an option (for example by clicking on checkbox) to decide how the menu behave. Thanks.

[iduuck]

@magrytos I don't know if this works, but you can try multiple="{{ booleanExpression }}". Honestly don't know about the scope binding here and if this works. But please try this out!