parsed: I'm the writer of the
Building a platform game - a beginner's guide tutorial that Kyatric has pointed you to.
I started out with the idea of adapting the Platform School tutorial for Construct Classic that you refer to, but I found that there were so many differences between the two Constructs that it really seemed best to start afresh.
You'll see that I've asked for comments about what you'd want to see in future instalments of my tutorial, so I hope you'll let me know.
In the meantime, I'm glad to know that there are people like you who see the need for a platform tutorial!