how to define global macro?

new to wm.

trying to find way to define global macro without
including a 'header.wm' in all my templates.  i
already have a header.wm, actually, but it's different
for about 10 subprojects I have, and I need to add a
macro (~60 lines) to all of them.  can I do this
another way?  either create a global macro that is
scooped-up automatically by everyone, or
programmatically do a template.includeTemplate()-type
operation?

thanks.

p.s. javadoc api is broken on site.


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