Solved: Help needed

[Rayman]

I'm here again to seek help from the kind people on the forum.
In the attached file, please click on the button New Day, once the form appeared click on the button " Load Last Day" and see the result: the list boxes autoselected the employees, machinery, etc. of the last day compiled.
The code works fine but ...
my goal would be to go back of one day for each click of the button "Load Last Day" and autoselect the correspondig employees, machinery,ecc.
This is beyond my capabilities

Thanks in advance for any help