Make a Infobox

[Bexs]

Hi everyone,
first of all sorry for my english, I am not good in writing in english.
I search for a script/the name off a thing to make the script. I would like to make a option on the mouse wheel "Infos" (thats no problem) and when you click it a "box" opens. With "box" I mean a box like in the epoch trading menu or in basebuilding mod. I hope you know what I mean.
In this box I would like to have a list on the left (maybe all the scripts I have on the server) and when you click on it opens on the right a description about the thing you clickt.
My Problem is: I don´t know the name of the "box", so I can´t find any tutorial how to make it.

 

[Vampire]

Here's all the code for epoch's trader menus if you want to look at that and mod it.

http://dayzepoch.com/forum/index.php?/topic/965-release-trader-menu-dialogs/

 

[Bexs]

Thank you, I have allready found it, but I´m not sure how to change the things in it, I hoped to find something like a description about these boxes, because I don´t have much expericence in scripting and there are so much things in the hpp file of the trader menu.