Right click on Inner Space (on the taskbar).
Select Configuration.
Go to the Game Configuration tab.
Select Warcraft from the drop down menu.
Select Warcraft Default Profile as the Profile, at the bottom.

Point the main executable path to wherever your World of Warcraft folder is.
And have the executable file be WoW.exe

If you were to move your folder onto an SSD (I did), that's the procedure to changing the launch folder.