Is it possible to install addons for Blender portable version to the portable folder instead of AppData folder?

Currently it is installed at:

C:\Users\my_user\AppData\Roaming\Blender Foundation\Blender\2.81\scripts\addons

I want it scripts to be installed at


What I've tried so far:

Copying the addon to the folder by hand. Apparently it doesn't show up when browsing the addons. Maybe it registers the scripts somewhere during the installation?

Defining a path for scripts in blender preferences setting.

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Apparently it still installs to the path in AppData. So this might be for something else?

So what do you think?