Hello all. I have edited the system block main menu to try and add another link that has a sub menu when clicked..the code looks like this

Main Link
Sub 1
Sub 2

however, once i update my system module the links all show up..how can i change this code so sub1 and sub2 only show up once "Main Link" is clicked..I tried setting Main Link to point to "menuSub" but that didnt seem to work..

Also, is there a way to organize my navigation bar so I can have my custom pages towards the top..mixed in with the regular download/installed modules?

Thanks in advance