Geometry Measurements?

Hi there
Im keen to know, when editing geometry (bsp), is there a way to see the size of the geometry as I edit it?
Most other editors like Cryengine show the measurements of the asset as you pull a face out etc and it’s a basic feature of most. Surely Unreal has this too!

If I’m editing a wall from say 3 meters to 5 - I need to know when it hits 5, currently I cant see this

Any help would be great
Cheers

Anyone know about this or does it just not exist?