Access Motion Graphics Templates library via scripting

Hi guys, is it possible to access Motion Graphics Templates library to insert mogrts to timeline?
I know there all mogrts stored in:

• MAC: username/Library/Application Support/Adobe/Common/Motion Graphics Templates.
• Windows (PC): AppData/Roaming/Common/Motion Graphics Templates.

But I wonder is there any builtin way to access the mogrts to not mess with cross platrform paths and filter out the whole folder everytime script is launched?

Also question that is not related to scripting - it is possible to export mogrts from AE with responsive sizes, eg my mogrt made within comp with 1920x1080, it will perfectly fit sequence with 1920x1080, but in sequence with doubled size(3840x2160) the mogrt will not be twice smaller, but also adjust its size to fit the seq settings?