Torquescript is barred from accessing any other directory other than the Add-Ons, Base, Saves, Sreenshots etc. in the Blockland root folder. It simply isn't given access anywhere else for security reasons.
you can however use a program that will share anything in that addons folder to another computer or cloud
I thought onedrive could be used to backup files/folders, ie auto backup your BL folder and share with another computer