Critical Systems templates (for cloning)

In setting up templates in the Critical Systems section for cloning, is it
possible to create a template for ALL tests.
In other words, can I fill in the "Host" field as "Production hosts", and
fill in the "Test" field as "*", so that I can set
up a blanket template for all production hosts, for all tests?  Or do I have
no choice but to create individual templates
for all the tests?