@Alejandro Jakubi I agreee with you. Firstly one need to realize of course that whatever Maplesoft provide of documentation it will never be possible to fully grasp and fully master all the functionality of such a big program. When that's said, Maplesoft should try to make the program as easy as possible to use for both advanced users as well as people who are new to it. Many of the list commands are what I will regard as being on an intermediate or advanced level. You will probably not be able to mix all those clever tricks in one line to accomplish what you want, if you are new to Maple. Then you will be looking for simpler commands. It's here I am missing some commands in the ListTools package.
It would be great if Maplesoft would make some pages in the documentation, where they are focusing on some important key issues. I remember for at long time being confused on the differences between rtables, arrays, lists, vectors, sets, ... A focus on the differences would be great. As you mention: The evaluation contexts. There are a whole Zoo of those commands evalf, eval, evalb, evalhf, evalc, ... What is the overall idea of those commands and the context in which they are being used. In the Help menu under Table of Contents tab, I found a folder names "Tasks > Lists", but it had little content. The same with "Tasks < Evaluating.
When I get stuck in the Help menu trying to figure out something, I quite often write the command and a few other words in Google to seach for it on the Web. Often I end up in Mapleprimes or in the Online help menu for Maple, which is great. But I am missing pages, where Maple are handling key issues or handling similar commands 'under one hat'. I think many beginners in Maple are looking for the logic behind the concepts. When that is understood, much is accomplished.
Alejandro, great with the list in Maple 401, as you mention: Commands and more you should know as an advanced user.