[Zope] "Dynamic" dtml-with

[Roger Fisher]

Is there a syntax I can use to include another folder in my namespace, when
I wont know which folder until runtime?

For example, if I have similarly-named preferences for different customers
in folders CUST1 and CUST2, I would like to at run-time be able to do
something similar to:
	<dtml-with "CurrentCustomerString">
to get the correct customer folder in my namespace.

Thanks in advance for any suggestions.