I am trying to use the HYLD operand. When I type ‘hy’ into the merit function editor, HYLD comes up and I can enter it, but when I run/update the merit function it turns back to BLNK with comment “was HYLD”. In the optimization wizard under Optimization Goal, it wont let me select “Improve Manufacturing Yield” and the section bubble is grayed out.
I am running a professional version of Zemax 22.2. Are these options just not available on my version? Or is there something I have to do to enable it?