How do I know which layout is using how much memory?

I want to know how much memory each layout uses . pls help.

Construct 2 always calculates an approx of the memory usage which is shown at the very bottom of Construct 2.

If that would be enough for you, simply delete all other layers and Construct 2 will tell you an approx of the usage.

Just make sure you've made a backup of your project / you don't save it like that.

But i think it's the easiest / fastest way to check it per layer.