Solved set the default value by user (1 Viewer)

[Safari]

Please help with the attached data base :

I want When i press the default button in invoicehead form
The value in text box named ( costcentern ) and combo box ( costcenterid ) is become as a default value for them in the current invoice
And still for all the following invoices too when i adding a new invoice
in anther way : the user will be able to set the default value by himself

Please edit it, if you please

Thanks

 

[arnelgp]

check and test

 

[Safari]

thank you very much