How to change Collision on multiple static meshes at once

Hi guys! I am teaching myself how to use UE4 for the purpose of ArchVis and I’ve run into a very time consuming issue! I model my houses in Google Sketchup and import them as a .FBX file into UE4, however in order for me to do a walk through i have to change the collision on each piece of the house from “Project Default” to “Use complex collision as simple” at times i can have over 150 static meshes at once that all need to be changed! Is there a way for me to change the collision on all of them at once without having to manually go in and individually change the collision for each static mesh! Thanks in advance!

you could just use a blocking volume to place custom collisions on the floors and walls. in the modes panel search for blocking volume.