I have an idea by using this one it will work.

Create another Database, from this database using custom module or existing module we can do it

(By using any existing button action from the current DB also we can do)

create a button in your module, by using this button action we can connect with Setting last DB.

see the following code how to connect a DB from another DB.

from openerp import api,  models

import xmlrpclib

class CustomModel(models.Model):

    _name = "custom.model"

    @api.model

    def update_details(self):

        url = 'http://localhost:8069'

        db = "your db name"  ## where you removed Settings

        username = "admin"

        password = "adminpwd"

        common = xmlrpclib.ServerProxy('{}/xmlrpc/2/common'.format(url))

        common.version()

        uid = common.authenticate(db, username, password, {})

        models = xmlrpclib.ServerProxy('{}/xmlrpc/2/object'.format(url))

        models.execute_kw(db, uid, password, 'res.users', 'write', [[1], {'sel_groups_1_2_3': 3}])

I hope you problem will solve with this