Is there a way to use 2 name idendifiers?

[dave massie]

I am using shibb v2.1.5 and I want to create 2 name identifiers and I want
to be able to send one of the name id's to one group of SP's and the other
name id to another group of SP's.

Because we have no backend database, we are limited to using name ID types
of unspecified.

Based on  this, is it possible to "filter" name ID's such they are exposed
to specific SP's?

Thanks,

Dave
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