Uh Huh
Well, start by making the bus waypoints, make a waypoint called "LOAD" at the area of the pickup then do a waypoint that is "TRANSPORT UNLOAD" at the dropoff, beware there is an "UNLOAD" which is for grouped units, and "TRANSPORT UNLOAD" which is the one you want.
Now onto the group of civs, Make a waypoint at the Pickup site called "GET IN" and go up the your toolbar and select "SYCHRONIZE" then single click on the Waypoint for GET IN and drag it over to the LOAD Waypoint and there should be a pinkish line between the two waypoints now, this will tell teh civs to board the bus. Thats it, I hope it works for you, i hope my english is understandabel because i was born in Wisconsin ;D PLz let me know how it turns out, it will boost my self esteem