You can use a tiled background, set its X offset to whatever you want it to scroll like - if you want it to scroll with the character, set X offset to Character.X*factor (factor being scrolling speed, parallax). If you want it to scroll over time, set X offset to, umm, whatever that system expression for ticks is. To make sure it doesn't overflow, just substract it by tiled background image width whenever it goes over that number.
My mind is blank at the moment and still don't have Construct installed, so hopefully someone else can produce an example.
Or using the global counter works, too. Just remember to reset it to zero after the background is fully looped, otherwise it will overflow in the future.
Instead of adding 1, add 60*timedelta, 60 being scrolling speed you can adjust if you want. Smooth scrolling!