Added in version after December 26, 2023.
You would need to contact support as it needs to be written in SQL coding.
Note for Support:
Global Setting Name: BusChangeSMS
Replace: !Time!, !GTStudentNum!
Default SQL: FName & ' ' & LName & ' has a bus change to ' & Address & IIF(Len('!GTStudentNum!')>0,' (!GTStudentNum!)','') & ' on Bus #' & BusNum & '-' & BusName & '.' & IIF(Len('!Time!')>2,' The bus will arrive approx !Time!','')