After performing calculation (by "Checks" Tab) you can display and/or change stirrups in the "Stirrups-Ductility" Tab window. In the below figure is shown an example of a column section designed for seismic zone with three hoops and two cross-ties as transverse reinforcement.
Options, text boxes and graphic commands are provided in the dialog box to change the initial proposal for hoops and cross-ties. For each change that you make the program performs an immediate shear check showing in the upper frame caption if it is Ok or Not:
The three hoops have been generated typing in the upper grid of this dialog window, for each hoop, the long. bar numbers that define vertices. To erase whole hoop type 0 in the first column of the grid. The cross-ties can be generated with graphical command 
or typing the number of the two bars which define the single tie. Each cross-tie can be erased with the dedicated graphical 
command or typing 0 in the grid.
The commands in the Tab bar are (from left to rigth):
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Print preview. Capture the image present in the main window and paste it in the Microsoft XPS Document Writer (useful to print the diagram directly on paper):
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Print numerical results for ductility check. Not active in the present display of stirrups.
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Copy. This command copy the image at moment displayed in the main window in the clipboard memory so you can paste it in any document you want.
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This command generate a dxf file of the image at moment displayed in the main window.
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Start the graphical generation of a new cross-tie by clicking with mouse on any two longitudinal bars
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Erase a cross-tie by clicking on it with mouse
Diameter and pitch of hoops and diameter of cross-ties can be changed in the corresponding text-boxes.
Cross-ties can be also generated typing in the grid (or type 0 to erase).