How to ... adopt Modx

Hi !
I discovered Modx recently and I very liked it, but before starting to made something that could be not possible/hardly madeable, I prefer asking you some questions.

It’s not a complex site I want to made, but it have some speficities that I have no idea to implement on Modx.
In fact I will have a menu on a two level part. I would like to recover the first level in one hand, and the second in the other hand, to choose the position of the main menu and an other position of the submenu. It is possible ?

Next problem, I have a part of the site (a left side element) that is visible only on some pages, it’s possible to made a "subtemplate" or something like this and to choose on which page display it ?

Finally, I’ve learned that it exist a module, called eForm, but can I made my own form with this module ? And if yes, how ?

I am not asking a lot of explanations, just good links are perfect. My main reason to asking you that is to avoid a useless work

Thank you for your help

You use the Wayfinder snippet to generate menus. A parameter is used to specify the starting point for the menu, so it’s very simple to have multiple menus reflecting different sections of the site; just have as many Wayfinder calls as you need, and have each one starting from a different point.
http://www.muddydogpaws.com/development/wayfinder/parameters.html

Template variables are the way to have blocks of content specific for each document.
http://modxcms.com/template-variables.html

It’s easy to make your own form with eForm.
http://wiki.modxcms.com/index.php/EForm

You’re great !
I think I have everything I need to start

Thank you !