To disable creation / edition of tags in many2many_tags widget pass options dictionary with either no_create or no_create_edit set.

Example:

<field name='subscribers' options="{'no_create_edit': True}" widget='many2many_tags' />

Please use below code.

<attribute name="options">{'no_create_edit': True, 'no_create':True, 'no_open':True}</attribute>

I hope this help you.

Best Thanks,

Ankit H Gandhi.

You can try this in your view. 

options="{'no_open':True,'no_create':1,'no_create_edit':1}" 

If you want to do it by view overriding, you can use xpath.

For example:

        <xpath expr="//tree[@string='Your Tree Name']" position="attributes">
            <attribute name="create">0</attribute>
                <attribute name="create">0</attribute>
                <attribute name="delete">0</attribute>
                <attribute name="edit">0</attribute>
        </xpath>

Nicolas,

Thank you very much. I already used yr module for o2m and I just needed it for many2many as well ;-)

Merci!

Wiebe

hello,

I just update web_m2o_enhanced module to support many2manytags widget.

You can check and use it:

Github repository

For comment and description of how to user, you can read This help question

options="{'no_create':True}"

This worked for me in V7:
options="{'create_edit':False}"