Hello,
Although, if you want to import something from the other Demos then you can make use of the Xtemos Templates Library. Here you can read about that: https://xtemos.com/docs-topic/templates-library/
Also, you can go to Dashboard > WoodMart > Prebuilt Websites > Additional pages > there you can also import different sort of Pages and Elements specifically too: https://ibb.co/fYypTJK
But if there is something specifically related to Demo that you can’t find under the above mentioned both places, then kindly mention or share that Demo Link with us along with your WP-ADMIN Login details so that we can try explicitly importing that on your Site.
Best Regards