I believe it's not possible to upload cloudbased files on the solid edge portal
It would be great if I could upload files from a cloud service like Onedrive-googledrive-Mega-Box etc.
I use mostly Mega because its fast and does have a the largest space to use for free.(Mostly not needed but for CAD related files very handy. And the client does not need to buy a subscription or need to have subscription or login to Mega.
If this would be available in future releases of the solidedgeportal than I could really collaborate with clients.
They could upload their 3Dfiles on the portal with corrections etc. And I could share the progress of the project etc.