Make custom templates and call it with "vb:raw"

[MyLibary]

Hello all,

Im trying to make some custom template for example i have created template name:
custom_header_mysite_beta

and i would like to use the content in this code in aother template, for example at header template in the next way:

{vb:raw ad_location.global_header1}

In my case:

{vb:raw custom_header_mysite_beta}

How can i do that?