VPN Hardening

Hi,

I have a SonicWall 5600 HA pair which, amongst other things, runs nearly 250 VPNs to satellite offices.

I would like to upgrade the VPNs 1st & 2nd proposals to a more secure level.

I don't want to manually do this one by one as it is too time consuming, so I was hoping that there is a way to automate this or script it?

Is this a possibility?

Thanks.