Multiple Id References for cross-reference element

Hello,

I am developing a structured application for MIL-STD-40051, using the MIL-STD-2361 V4.12 DTD. The cross-reference element <xref> has 10 different Id Reference attributes. Each one is for a cross-reference to a specific element. For example @taskid for a step or test, @figid for a figure, @tableid for a table, etc.

FrameMaker uses the first Id Reference it finds in the EDD for <xref>. I found this out by changing the order.

Is there any way to get FrameMaker to use a specific Id Reference depending on the element being cross-referenced? I have been trying to find something in the r/w rules to do this. No luck.

Regards,

Stan