Location sharing is an easy thing to find within the application. If your department has enabled location sharing within the application you can access this through the bottom right hand side button next to your current location address. 

NOTE: it is the button that looks like a sonar (or Bullseye)

By tapping that button you will see a switch that will allow you to enable or disable location sharing. 

Tap on the slider switch and you will see it turn from greyed out to green indicating your location sharing is now active. 

This will allow your department to see your location as you respond to calls and move about your daily business. Depending upon the device type and user roles you may not have the option to turn your location sharing on or off. If you have a question in this regard please contact your systems administrator.