So I try to get started about production planning in Odoo. 

One basic thing will be that I would like to have visual view four weeks time slot in gantt table.

And I would like to see one week to past (because they usually is some production orders witch are late) week whits is on going and two weeks to future.

Can this be done? I only found that I will see one complete month. Starting from first day of that month and ending in last day. 

-Teemu