How to pass multiple values

Sorry I can't find this in the docos, and have prowled the last hour...including this thread: http://drupal.org/node/419880

Everywhere is the hint to separate multiple arguments: Views 2 says use "/" , and in this world of course we use ","

BUT all I want to do is pass multiple values to the View.

I only have one argument: what is the syntax to send a series of "or" values to the View through Insert View?

How can I do this?

In a simple case, is there any chance to use wildcards through Insert Views?

I have a series of values, C1, C2, C3 ... is it possible to say:
view=projects=block_1=C* ?

Thanks in advance.