Help with FBX import and floor alignment

Hi all, I have imported an FBX file so I can walk around in 3rd person, however I don’t know how to align the floor so I can walk around in 3rd person to the imported FBX file. I’d like to walk around on the imported FBX file… Please can someone help / advise on how to do this please? Thank you for your help, O

I think you’ll find the collision is one great big block.

The easiest way is to change the collision in the static mesh editor to ‘use complex as simple’, but that may hit your performance if you use it a lot.

Another option is to turn off the collision, and place blocking volumes.

The third option is to manually make the collision in your modelling tool