Download Qtips MediaX skin for help. Its an awesome looking skin and can be downloaded
here. I want you to use that skin to learn on as it already has menu categories setup. We will work with the main menu screen.
ONLY DECOMPRESS THE SKIN!!!! Not the whole .zip file. I did and found out that it sets itself up on an older version of XLobby that does not work with .Net2. OR in the least make sure you backup your Xlobby folder. What a pain that was
.
Open Xlobby setup:
Create events called Next Item and Previous Item and set category/next item , category/previous item commands respectively to the events (anywhere in one of the groups, or create your own group).
Also create an new event called Category Play and set a category/execute command to that event.
Close Xlobby setup and open the skin editor.
Highlight the up arrow button and change the event that's been tagged to it to the Previous Item event.
Highlight the down arrow button and change the event that's been tagged to it to the Next Item event.
Create a new button and set its event to the Category Play event.
Select the menu category, click on the category tab/display and the click on the Unselected button. Click on image, the select the bar-selected.png (this should be the same as the Selected image).
Close the skin editor, you should now see a menu item highlighted, clicking on the up arrow takes you up a menu item, clicking on the down arrow should take you down one menu item. Click on the the new button that you created should now take you to that screen.
Now you can take your new found knowledge and incorporate it into whatever skin you want, providing you understand how to setup menu categories...but that's a lesson for another day.
Hope that helps you out.
*EDIT*
I stand corrected the image to use is not bar-selected.png, but it should be bluebutton-green.png. Sorry bout that.