eva/3 Application Builder forms possess the characteristic to be able to represent several versions of a form. They can be activated or deactivated by the property ShowTaskPanel of the ToolBarPanel.
If the form is in the application view, the control field for changing between the versions are visible at the upper left side of the form (s. fig. 74 ).

Fig. 124: Control Field for Versioning Forms
A maximum of three form versions may be edited. A version can be changed at will. The changes will be recorded in each version.

Fig. 125: Creating New Versions of the Form
The following buttons are available:
| Expands the control field | |
| Collapses the control field | |
| Shows the first version of the form | |
| Shows the second version of the form | |
| Shows the third version of the form | |
| Creates a new version of the form | |
| Removes the selected version of the form |