Creating A loop

Hi I am new to Synfig and animation in general. I am trying to make a group of clouds loop in an animation and make them appear as if the animation was just running on for ever, like how to news scrolls at the bottom of the news, but with clouds. How would I do this?

A found an example on the internet of the scrolling I am talking about here:

You would want to look into the time loop layer.
Read that piece of documentation and get back to us if you need more help.

Made tutorial video here:

The trick is making a single complete loop first, then using Time Loop Layer to repeat the inner part of the loop.