Script for Dodge and Burn Curves Inside Dedicated Group

I requested to have a script made and wanted me to post here. 

What i want is for the Curves to be Named Dodge and Burn inside a Dedicated group named Dodge & Burn, if there isn't a group named it create it, also if so can i have two scripts one for the Dodge and one for the Burn, as sometimes i Dodge more then Burn and won't need to add the Burn curve if i don't need it?

Here is a screenshot of the way i set up my Curves 

Both Curves are basically the same except the Burn needs to be set to Multiply within the Color Overlay settings. Oh btw they need to have a black mask also so I can start painting to reveal the effects

Thanks for the help i really appreciate it