Supplemental pleadings, setting up matters which arise after the original pleadings are filed, may be filed within a reasonable time by either party by leave of court and upon terms.
735 ILCS 5/2-609
Supplemental pleadings, setting up matters which arise after the original pleadings are filed, may be filed within a reasonable time by either party by leave of court and upon terms.
735 ILCS 5/2-609