Why Rajamouli using this TRUSS?

We are aware that a duet is being picturised on Prabhas and Samantha in Ramoji Film City since the past few days for 'Baahubali'. To everyone's surprise, Rajamouli has been using 'TRUSS' extensively to film this particular song. Usually, These ropes are used whenever high-octane action sequence is being shot. What's the plan of Jakanna? Does he wants to repeat Aamir Khan and Katrina Kaif's 'Dhoom 3' feat? Wait for few more months to know the untold secret!