How to create your own template on Gii?

Question

Yii

Hello.
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History: Everyone who uses Yii2 knows that there is a gii code generator that helps with the routine creation of the same type of tasks: generating forms, generating modules, controllers, and so on.
As shown in the picture below:

In the dedicated space, you can specify your template so that you do not constantly redesign and layout your personal application. I did not find documentation on the formation of my own templates. It takes a lot of time to fix templates. I can make my template based on the default so that it does not affect performance, but here lies the root of the evil.
After updating yii, there is a risk that all settings will go to hell in the middle of nowhere, then look for fistulas from old projects and backups of your work, and re-integrate. And then suddenly incompatibility, suddenly vulnerability, flattery in a box without a flashlight, somehow scary. Hence the question:
Question: Where is the manual, information, about the development of their templates for gii ???
This is very important, who dealt with this kind of issues, please respond.

Answer 1

Goodnight.
Probably very badly searched...
https://github.com/yiisoft/yii2-gii/blob/master/do...
https://www.youtube.com/watch?v=fvWEqx2HWsE