Stairs, Ladders, and moving speed

Hello,

Recently, I have been tasked with getting a vr model ready for an expo a few members of our company will be attending. Using IRIS VR has been a big help as I can just take the file from Navisworks, and get it VR ready in a few moments. 

The questions that I have are the following. One issue is that some of the members who will be going to the expo want anyone using this to be able to walk around like normal, but also walk up stairs, climb ladders, etc. I wanted to know if there is a way I could set this up using IRIS VR or not. Or if it would be possible for me to export this to Unity, and get it set up there. 

(I had checked one of the posts asking about stairs, but noticed it was an older post,(close to a year or 2 old) so I'm wondering if it has changed much)

One of the last things I noticed was that when moving in the environment, it appeared like I was moving pretty slow. Is there a way of increasing movement speed, or is the recommended means of travel simply to teleport?

Thanks for any help.