Construct provides the runtime engine. It is like arts teacher provides you with a block of clay.
What you make out of it, is entirely your problem. The arts teacher won't shape the block of clay out for you, you have to do it yourself.
There is no tile engine for Construct yet, but it has everything you need to make one. Like deadeye said, you are wasting time by looking for shortcuts. It is almost as if you don't want to make a game yourself, you just want to direct it around.
Unfortunately game development is about putting effort into your projects. I am still failing, but I'm getting there... slowly.
QFT. Construct is developed to enable anyone to make pretty much any 2D game they want, not to make certain types of game ridiculously easy, like RPG maker.