I am very much Interested in learning Reverse Engineering in CATIA 'digitized shape editor' app

I am very much Interested in learning Reverse Engineering in CATIA 'digitized shape editor' app where we can import point cloud data or scanned data and accordingly we can generate mesh and then surface and do other necessary operations. Is there any proper tutorials available with the input files so that I can have some hands-on experience. Any kind of help is highly appreciable. Thank you