Under non-sequential mode, you may use 37%`P\O;s
zNNzsT8na
Toroidal Lens which support aspheric surface b$;HI7)/K
5}<.1ab3V
or you may use Biconic Lens if you make use of conic constant alone to create aspheric surface. 9` OG
sx<}
tbG
Hope this would help, bu tbear in mind that diffraction effect is not modelable in non-sequential mode.