Using Zoom on a Cisco Spark Board

Previously, when using Zoom on our Spark Board, attendees that would call in, would display in separate windows on the spark board.  Now they display in one single window and the more attendees, the smaller they are in the single window.  On Windows PCs, they display in separate windows. 

Is there a way for me to set attendees to again display in separate windows on the Spark board?