Leoni Dress Pack added to robot

Hi everyone!
I am trying to add a LEONI Dress Pack to a robot R2000iC-270F using the 3D Experience platform. For now, I got the 3D model for the complete LEONI Dress pack in five different files/parts. I have attached these parts to the imported robot using the rigid constraint in the Kinematic tool using the Equipment Desing app.When I simulate the movement of this robot in the Robot Simulation app, the rigid constraints look good,however, we still have some problems joining the different parts of the dress pack. 
For now, what we have is:

-5 different parts

We would like to know:

- How to join all the parts in order to get one common hose. (We already have tried the Engineering Connections tool in the Kinematic Menu. Specifically, the planar and coincidence constraint, but when we try to simulate the robots in the Robot Simulation app, these constraints does not work correctly)

At the end:

-We would like to simulate the DRESS PACK as a dynamic hose in order to check interference and flexibility with the robot.

Best Regards