Hide fields in checkout and invoice

Hi Sebastian,

I've sent an email to your mailbox with more information.

Kind Regards,
Enrico
AT289

Hi Enrico,

is it possible that fields are hidden at the checkout page and in the invoice when they have the value 0?
In my imagination they should get the behaivior like the date und time field. When the visitor don't select a date or time then there is no date or time value visible in the invoice.

Thanks an greetings
Sebastian