Is it possible to upload just one file, for example body-emd.html to a scene on shapespark cloud?
Uploading the entire scene just for one file seems to be an overkill.
Only changed files are uploading so it should work fast in your case. If it takes too much time please send us a report with logs from the application. We’ll investigate it.
By the way, you can test scenes locally by clicking thumbnail instead of the “Edit” button in the application.
If it only loads the files which are changed, then I am ok.