Multiple Monitor IP's

[tracerrx]

Currently you can only specify a single IP to monitor per gateway interface (and they cant be re-used).  Is it possible to have a primary AND secondary monitor IP per gateway and require it to fail both?   

I use 8.8.8.8 for a hughesnet connection (secondary gateway) and 75.75.75.75 for a comcast (primary gateway)... Often 75.75.75.75 stops responding to pings even though the connection is still up (and opnsense marks it as down).  No I cant use 8.8.4.4 because I actually have a 3rd wan connection using that.