How to show the address of the sender after the input in the form automatically above the recipient address?

Hello all,

I have created a form with Writer (LO v5.3.0.3), which contains a recipient address that fits in a window envelope for double folded DIN A4 pages. The form has to be filled out, printed and signed before it will be send. The form also inquires the sender’s name and address.

Is there any way to show the address of the sender after the input in the form automatically above the recipient address in smaller font size?

Best regards

Andreas