3d building questions

[eagledude4]

I make all my custom buildings in sketchup and have a few questions.
1. Am I allowed to export the building from oxygen when a building has no bottom?
2. Do I need to make my walls "double walls", or can I add a collision box to the walls in oxygen? If I need to have an outerwall and an inner wall to prevent players walking through my buildings, what is the distance I need to use in sketchup?

[Thromp]

Search google for Bohemia community wiki , in there is tutorial by mondkalb, everything is there , simply do your resolution in sketch up but follow his guidelines and all other fire geo geometry etc is easy to do right in O2

Infact it's here

https://community.bistudio.com/wiki/...Addon_Tutorial

[eagledude4]

Thanks.

Edit: I have another question that tutorial didn't answer. I couldn't seem a grid snap function