I published the slide show and it generate an index file. Try to edit the property of the slide, how can I do the edit after publishing the project or I need to re-do it with a new project?
A: Some changes (like delay between slides or loop option) you can make in the generated script.js file. You'll find it in engine1 folder.
If you need to change the effect you'll have to regenerate your slider via the app and upload new files into the server.