This option you can find in the installation directory (help documentation) of the software and you can use it for the application while editing your config.pro file.
Category | Description | Values | Default value |
Drawing | Controls the initial format of the date displayed in a drawing. The format for the setting is a string consisting of three portions: the year, the month, and the date. You can enter the portions in any order. |
| %dd-%mmm-%yy |