> Should I create a Construct Application for this?
> n easier way is to just use construct's nice layout editor as a level editor, and export the built levels using events. depending on the way you choose to export your levels, you could then load them from files or copy the levels to clipboard & paste them into an appropriate object in your game.
Yep. This is exactly what I'm doing with Vert. I make a level in the Layout, then run the game, hit a button, and it exports the level as an INI file. Then I copy the contents of the file and stick it in a text object in the game. The level loading sequence can use the text object to, well, load the level.
Once you get the level building/loading sequence done it's pretty easy to build levels. It takes a lot more prep work than just making a bunch of layouts for individual levels, but for a larger project it'll save you a lot of hassle in the long run.