field name="budget_month_ids"
    tree editable="top" hasSelectors="true"
        field name="construction_phase"
        field name="name" 
        field name="director_num" 
        field name="agent_num"
        field name="civil_num"
        field name="hydropower_num"
        field name="decoration_num" 
        field name="safe_num" 
        field name="garden_num" 
        field name="civil_visor_num"
        field name="hydropower_visor_num"
        field name="information_num" 
        field name="person_sum" 
    tree
field
    

above of this is a one2many filed in my model form view,I wish it had selectors in one2many tree view, i added hasSelectors=true but it didn't work

how do i do?

I would appreciate it if you could explain it in detail