Easiest way... save the prop to your prop folder and load it back as a 2nd prop... they will both look as one prop unless you move one of them. Before you start moving anything, parent the 2nd prop to the 1st prop... now you have the 1st prop set as origin... so you can go ahead and translate or rotate the 2nd prop. Of course you can set the 1st prop to be invisible if you wish. Use the Grouping Tool to split a prop into two or more props.

Parented handrail 2 to handrail 1... and I moved handrail 2 forward... on the Z-axis... zTran

(oh and handrail 1 is parented to her abdomen)

PS: those are both 2-minute renders... the chrome reflection on the handrail is fake lol