New York Civil Practice Law & Rules Section 603 - Severance and separate trials.

 603. Severance and separate trials. In furtherance of convenience or
  to  avoid  prejudice  the  court may order a severance of claims, or may
  order a separate trial of any claim, or of any separate issue. The court
  may order the trial of any claim or issue prior  to  the  trial  of  the
  others.

Last modified: February 3, 2019