All matlab toolboxes are installed under /usr/apps/matlab.tlbx
which was added to MATLABPATH within a system-wide profile file, so
it should work for any user who is logged in.  To add a toolbox, helper scripts
load_ were created under /usr/apps/matlab.tlbx,  So, for example,
to add path to "spm" it is enough to type load_spm and then you can start
spm by typing "spm" at the Matlab command prompt.