How to guide/teach.gh script to target to custom Rhino templates

Hi Guys

I have a situation here…
I am currently executing an automation procedure directly triggering a .gh file.
Since I have pre-checked the option:

Hence, after .gh is triggered, it will open a specific Rhino template containing preset materials and HDR and proceed the computation. This is what I want, no issue on that.

However, I am having a new problem…
If my new .gh script requires a new customed Rhino template? How do I go about doing this?

Hope you can help me on this.

Thanks in advance!

Chua