Example: placing by span in a rectangular area

Requirement:
Method 1: 3D general arrangement drawing with views and sections
Method 2: 2D general arrangement drawing
Method 3: 2D general arrangement drawing

1

Method 1: 3D model on
Method 2: 3D model on
Method 3: 3D model off

Reinforce with 3D model option is active or not ( Options, Reinforcement page)

2

Click tool

Span Reinforcement

3

Enter support depth in the dialog line, click points on the placement polygon and press ESC

3a

Only with method 2:
Select view
Old / New
Select spatial orientation

4

Modify the outline polygon and define the layer depth and concrete cover at bottom

5

Set parameters

6

Press ESC

Result: