Custom Futures- new CBOE Expiration Rules Require more Choices in QM (MC64 8.8 latest)

After trying to make a CFE CBOE VIX Futures Expiry Rule, It seems that the dialog box is missing a search field to complete the rule. 
The rule states that expiry (the business day before final settlement date, called "last trading day" by CBOE for a futures contract) is (and I quote this horrible sentence):
"The Wednesday that is thirty days prior to the third Friday of the calendar month immediately following hte month in which the contract expires ("Final Settlement Date")"
I can put in 31 days prior to the 3rd Friday of next month, but then there needs to be a search function to find the wednesday of the week that falls in!