I found the Drag & drop version has many limitations , can we revert back to older version after finish developing ?
No, there is no way to do that. They are working on a conversion from legacy (older) to drag-and-drop (new). I agree that the new interface has many limitations. I’m using it for prototyping of some things or quick tests but otherwise I’m still developing using the older interface.
Edit: the new drag-and-drop interface is really niiiiice. But I’m waiting for things like the ability to clone and create components, and the ability to edit all/most component properties using blocks.
We’re actively working on getting rid of as many of those limitations as possible (though, for clarity, every product had some limitations)
Which one in particular is blocking you from publishing your app @planet.protectors.gi right now?