Maybe you can use the EXPRESSIONS to control this.
Create the expression QTY_COMPONENTS for example, with 24, in PATTERN COMPONENTS> LAYOUT> CIRCULAR> select the vector and center> In the ANGLE DIMENSION> SPACING = COUNT AND PITCH> Count = QTY_COMPONENTS> Pitch Angle = 360 / QTY_COMPONENTS.
Then just change the value in the expression to change the quantity.
If you do not want to use the expressions to control why it might be a bit difficult to find, you can link to the properties and control there.
Hope this helps.