Hi all,

I'm trying to do a widget similar to the web_one2many_selectable, available to Odoo 10, but I cant enable the checkbox in the list. 

After reviewing the code for version 10; I guess that the instruction that enable this behavior is:

multi_selection: true;

but this one doesn't work in Odoo11.

Does anyone Know the similar instruction in Odoo 11?

Thanks in advance!