First off, welcome to iRV2!
Second, you should add a "signature" to your profile. It contains whatever info you want; most people put info about their coach there, so they don't have to type it into each message. Instructions for adding a signature are here
Your coach is built on a Ford F-53 chassis. Ford makes the chassis owner's manuals available online:
Your coach may have been built on a 2016 or a 2017 chassis. The 2017 chassis manual discusses the hazard flasher on page 54 of the manual. It says:
The hazard flasher control is located on the steering column, just behind the steering wheel.