Comprehensible documentation set of example to developp webapp 2.1 like applications

Dears,

We are trying to assess the capabilities of beas web apps 2.1 to adresse our customer's requierements in a lean and quick way.

My developpement team though, is facing difficulties to fully exploit the current documentation and tutorial application. 

Here is below their interrogrations and lacks:
"The problem is that the tutorial application does not allow to complete the exercise. It lacks an explanation of the steps to follow and the functioning of the elements used. Moreover the second part, that which concerns the UX does not explain how to add the new blocks of code in the first one."

"Finally even by copying the sticky set (to normally avoid syntax errors) and looking in existing applications, how to integrate the UX part, some functions are not working or disfunctionning, the tutorial application does not work."

"The beas service layer, does not seem to be a problem, we can find what we are looking for (but a minimum of knowledge of SAP Service Layer is mandatory)."

Tested on Beas Manufacturing version 9.3 PL02 HF03