All templates (standard ones) are embedded in the hero's lod file.
However, if you create a file named rmg.txt in the Data folder with descriptions of the templates you need, only the corresponding maps will be generated.
Next is an example of a file with 2x4, 2, and 3 templates. They are quite popular.
Their descriptions can be found on ag.ru. If you wish, you can understand the structure and edit them. Or create completely new ones. There are very well-balanced custom templates.