I Zane, sorry for the late response, but if you are still interested – I think I may have a solution for you!
To find the plugin, go to edit a post. Then click “Add Media” – a modal screen will open now. Here, you need to find the option “Save & Import Image from URL” to use the plugin.
– If your window is large, this will be in a panel on the left of the modal
– If your window is small, you need to find a little drop down at the top of the window (next to where it says “Insert Media”), and select “Save & Import Image from URL” from there.
Check out the screenshot here: https://imgur.com/a/u6m9W
Unfortunately, with small windows, my plugin is a bit hidden – but I can’t really do anything about it, because that is how wordpress decided to design the admin panel. Hope this helps and let me know if you need further support.
Thanks
basteln3rk