Hi Leon,

In the MFE, the 2nd through 9th columns have the following hard-coded names in the source code:

• Surf (integer)
• Wave (integer)
• Hx (double)
• Hy (double)
• Px (double)
• Py (double)
• Ex (double)
• Ey (double)

These columns typically have dynamic names based on the selected operand, but for a ZPLM, the MFE does not know what variables the user is asking for.  So, for a ZPLM, the 6 double columns keep the Hx, Hy, Px, Py, Ex, and Ey header names.  These columns do not represent the normalized field, normalized pupil, or electric field values for a specific ray.  These are inputs that a user can pass to the ZPLM with the Pass Value functions: PVHX(), PVHY(), PVPX(), PVPY(), PVEX(), PVEY().  If you don’t need information from the user to run the macro, then you can simply leave these 6 columns as 0.

There is more information in the Help Files under the heading Optimizing with ZPL Macros.

Thank you Michael for the fast reply.