Footer on Inventory Write-off

Is there any chances to have footer on Inventory Write-off form where we need to have verification and approval signature for that item to write-off. (it can be done via custom theme, but is being under Obsolete Features now)

You can use a Text Custom Field.

Thank you @Mark for your advice,
But you know very well the deference between Custom Field and Footer.
My footer is like this;

For this you know the html into it. inside the custom field it is open to all staffs who see the Inventory Write-off unlike “Footer”
My request here, is there any idea to have footer on “Inventory Write-off”
There are request for footer in all forms and reports too.