From your profile go to Settings > My company > Company details > General tab> Edit and in the field "Legal record" add the annotations you want to be displayed on your documents.
STEL Order is everything you need and how you need it.
STEL Order
The section "legal record" has a specific character size, if what we need is to add a larger text we have to make such annotation in the document reference, in the attachments section, for this access Settings > My company > Basic settings > References > Title > Attachments. .