[Typo3] selectorbox without database relation

[Bartosz Aninowski]

Uzytkownik "Jean-Baptiste Rio" <triphot69 at hotmail.com> napisal w wiadomosci 
news:mailman.1.1119357025.5296.typo3-english at lists.netfielders.de...
> Absolutely yes.
>
> Just see the "Example - A simple selector box" in the page you provide the 
> URL.
Thanks for your reply but this is not a solution.
I need slector box with multiple choice. I want give user  possibility to 
see which items are selected.
auh I found renderMode is exacly what I want