Create a custom profile of the railing and apply it the wall or beam tool
Then you can magic-wand the wall or beam onto the edge of the slab
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"