I want to hide the tree view for the portal user, 

I went into Technical settings -- User Interface -- Views, and I searched for the tree view I want to hide, and added on groups the groups of users, I want them to see the tree view, but nothing seems to change.

I also tried on the tree view xml declaration and added : 

<field name="group_ids">[(4, ref('__export__.res_groups_65'))]<field>

'__export__.res_groups_65' is the group's id I want them to see the tree view.

Is there something I'm missing  ?