After clicking 
, the following dialog displays:
To define a bar, the following should be specified:
- Bar diameter (the diameter defined in the dialog is adopted by default)
- Cover of reinforcing bars (the cover defined in the dialog is adopted by default)
- In the Parameters of reinforcing bar shape field - anchor parameters for bar ends, i.e. hook angle, length and value of the a parameter which defines a length of overlapping bars.
The shape of a bar presented in the schematic drawing is adjusted dynamically to the specified values of a hook bending angle. Standard hook angle values include:
- 0°
- 90°
- 135°
- 180°
- -90°
- -135°
- -180°.
The following icons are available in the right part of the dialog box while a rectangular stirrup is defined (the remaining icons are unavailable):
Diagonal - is used to create a rectangular contour by defining a diagonal. After selecting, the dialog box closes, and while moving the cursor, a defined rectangular stirrup is presented dynamically 
Select - is used to indicate directly a rectangular contour. After selecting, the dialog box closes, and the cursor assumes the shape of a square (see the ACAD command 'copy' - the phase of selecting the object to be copied). After selecting any point on the screen, the ACAD object is detected and a transversal reinforcement (stirrup) is drawn within the indicated object 
Pick point - is used to search a closed contour (rectangle) by clicking inside the contour. After selecting, the dialog closes, and the cursor assumes the shape of a cross (see the ACAD command 'hatch'). The detected rectangle is changed to a stirrup shaped like a detected contour, but decreased by the cover value.