Add antifreeze BP4 type to the MS Martini forcefield

Dear Materials Studio users,

I am attaching a script that will allow you to automatically extend any Martini forcefield you have developed to include the antifreeze water particle. I am also including the forcefield if you just want the standard types. The script is similar to the one posted last by Stephen year Add ring types to the MS Martini forcefield type.

Best,

/Jason