Create ability to save selected entries against an attribute

[mrdansk]

Normal attributes can be set using setAttribute('attribute_handle', attribute_value). However trying to set an attribute using a multi - select express attribute does not work as desired in this way. For example I have a user attribute which is an express multi select which holds a list of facilities a user is assigned to manage. I want to import a csv containing new users and assign their facilities based on an array in one field of the csv. But using setAttribute() won't allow this with the express multi select addon.

[mnakalay]

This is super old but I'm answering for future generations.

On install, this attribute is only attached to the "collection" category aka pages.

Express lists all attribute types so that's not a big deal. But in your question, you are referencing Users specifically so I think you might have to first attach this attribute type to the users category and then it might work.

I emphasize "might" as I haven't tested it.