In the "documents" section in the database manager, when editing a document three new variable fields can be added. Beside the variable database fields dates, random numbers and page breaks can be inserted:

- date of document generation: will insert the date on which a letter was generated

- unique code at document generation: inserts a random unique number when the document is generated. As such letters can be assigned a unique correspondence number.

- Print page break: this will insert a hidden piece of code which will not be visible when viewing the document in a browser. However when printed a page break will be inserted where this variable is included.