Somebody used the 2D Matrix Module of the OCA with Success? The documentation is better than in many cases but I dont get it right. I tried now for some hours and get an error: 5 arguments needed 5 given.

Could somebody provide some example code of a working solution?

I could post mine here but I dont belive that its the best starting point......

Model: The fields I would like to use

tag_master_ids = fields.One2many('equi.tag_master', 'master_eqm_id', string="TAG Master") 
basic_function_ids = fields.One2many('equi.basic_function', 'master_eqm_id', string="Basic Functions") 
bf_tag_zustand_id = fields.One2many('equi.bf_tag_zustand', 'zustand', string="Zustand")