The Sector Builder is a simple program to rebuild destroyed sectors.
This program can only be unlocked by gaining Knowledge from Franz Hopper's Diary, in an entry available even in its encrypted form.
This program is available only in Lyoko's Terminal, or to any device connected to it.
You can select the sector to build by pressing the up and down arrows on the right part of the window. Once you have chosen a sector, right-click the keypad to automatically enter the code and launch the compilation process. If all of Lyoko is destroyed, you must build Sector Five first.
The compilation usually takes five minutes, but will last will only take one when building Sector Five.
Once the timer reaches zero, you only need to right-click the program once again to complete the build.
If a sector was destroyed using a Waytower (whether it is through a vote or Code XANA), a Software Error will appear blocking the use of the program, and you will have to obtain sector data from the tower menu of the waytowers that originally led to that sector. If all surface sectors are destroyed, you will be able to build it without having to collect any.