YOU need sorcery, boy!
... or the 'setpos' spell, to be more spec.
INIT field spell goes:
This setpos [getpos this select 0, getpos this select 1, 13]
Now, this command is to pe put in the INIT (initialsation) field of a unit/object
when created; so just do that & set the last number, the 13 to whatever # - this is the height setting.
Simply fiddle around w/ it and yer done, m8
Tombster