i want to disable the "add one line" in a many2many tags tree after adding one single line ? is that possible ? i tried
<field name="indication_ids" >
<tree editable="bottom" options="{'no_create_edit': True}" >
<field name="motor_vehicule"/>
<field name="steel_griders"/>
<field name="wood"/>
</tree>
</field>
but it disables the "add one line" totally, not allowing me to add a single line