How do I resize objects?

Development Asset Creation
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1

I am following a tutorial and using UE 4.72 and cannot figure out how to resize objects.

Tutorial Reference at time: - YouTube

Thank you

2

Same problem here! The brush settings are not showing, which means that besides not being able to resize, I’m not able to subtract geometry either.
Any help would be very much appreciated.
Thank you

3

Found it under the BSP tab creation panel : )
Cheers

4

Thanks, I still don’t know how to resize walls and stuff, but I can work out of BSP just fine using boxes.