Run custom content in Patch Policy

I am starting to test the latest feature where you can leverage Custom Content in a Patch Policy.

When I add the tick to include Categories or Sources, I only see limited choices when selecting one of our Custom Sites. In the snip below, I have 2 tasks that will set a BES Client Setting, one with the Source of BigFix which WebUI picks up, the other is the Company Name which is does not. Is there a limitation on the entries of Categories and Sources that it can recognize?

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Patch policies only detect Fixlets (with a default action)… not tasks.