Hey Fella , try this ? Go to purple , set to 4 , then flickering red , set to 10.
Then turn off the gun. . .
then turn it on again and you should have millennium Mode = 10.5.
The first setting sets the mode which changes a load of settings in one go !!!
Then modify the smaller ones you want.
It wont be a perfect millennium mode but will limit the rate of fire to 10.5.
Then tweek .