Add this in a new script above main
class Scene_Title
#--------------------------------------------------------------------------
# * Main Processing
#--------------------------------------------------------------------------
alias item_setup_main main
def main
# The Usual
item_setup_main
# Setup Data
setup_data
end
#--------------------------------------------------------------------------
# * Setup Data
#--------------------------------------------------------------------------
def setup_data
$data_items[1].recover_hp = 10000
end
end
Only edit the setup data method I have already added an example of setting the recover hp rate to something over 9999 see the RMXP Help File for more on the Data Structure of the Items, Weapons, Skills, Armor etc.
Untested but it should work reply if it gives you any trouble