Yes, it is possible. You can load menu.vim (the default gvim menu definitions), or you can just start from scratch and create your own, then access them through :emenu. This doesn't give you nano-like always-visible menus, though; it gives you the ability to navigate menus using command-line tab completion.
If the user doesn't have a vimrc, you'll want to start by disabling vi compatibility:
:set nocompatible
Enable smart command line completion on <Tab> (enable listing all possible choices, and navigating the results with <Up>, <Down>, <Left>, <Right>, and <Enter>):
:set wildmenu
Make repeated presses cycle between all matching choices:
:set wildmode=full
Load the default menus (this would happen automatically in gvim, but not in terminal vim):
:source $VIMRUNTIME/menu.vim
After those four commands, you can manually trigger menu completion by invoking tab completion on the :emenu command, by doing :emenu<space><tab>
You can navigate the results using the tab key and the arrow keys, and the enter key (it both expands submenus and selects items). You can then make that more convenient by going a step further, and binding a mapping to pop up the menu without having to type :emenu every time:
Make Ctrl-Z in a mapping act like pressing <Tab> interactively on the command line:
:set wildcharm=<C-Z>
And make a binding that automatically invokes :emenu completion for you:
:map <F4> :emenu <C-Z>
I do not think this is possible. The best you'll be able to do is block select some text, and do a search/replace on the first character s/^/"/ in vim to insert a " to the beginning of each line.
The vim plugin NERD Commenter might help make this easier as well.
Best Answer
This worked for me: