Under non-sequential mode, you may use !T#~.QP4
4}gqtw:
Toroidal Lens which support aspheric surface 89k9#i X
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DCrSa>
or you may use Biconic Lens if you make use of conic constant alone to create aspheric surface. -*M/,O
al(t-3`<
Hope this would help, bu tbear in mind that diffraction effect is not modelable in non-sequential mode.