Это по-прежнему инструкция к программе по проектированию стен.

Привожу контекст:

29 On the Options Bar, select Wall faces for Prefer.
30 Select the upper horizontal wall segment exterior face as the first dimension point.
31 Select the lower horizontal wall segment exterior face as the second dimension point.

The vertical wall exterior face to exterior face dimension displays.

32 On the Options Bar, select Faces of core for Prefer.
33 Select the left vertical wall segment exterior core face as the first dimension point.
34 Select the right vertical wall segment exterior core face as the second dimension point.
The horizontal wall core face to core face dimension displays.