When you travel with friends, every time you follow one of them and this include to enter the destination for each vehicle (one waze per vehicle) just in case of one of them is lost in traffic.

The idea is to have a group option to invite your friends who travel with you to your waze group, one of them enter a destination and waze share automatically to the other group participant.

Maybe a chat can be available in the group to share about next destination or indicate an empty tank and a necessary refueling or something else.