The "Tracking" button opens the check call/tracking sub screen.
a) you can add all the check calls you want. no limit.
b) when you change a loads STATUS to DISPATCHED or EMPTY, DRD will put in an automatic check call (see black arrow below).
c) there is an EMAIL button provided to email check calls for the load.
adding a NEW check call
Loads Awaiting check calls->this screen show list of loads that have a status of ASSIGNED or DISPATCHED, meaning they were active loads