In early versions of Delphi and RAD Studio, a user could change some of the current project options and (with a check box) save them as default, that is as the initial options for any future project. It was also possible to change this configuration by selecting the Project Options when no project was active. This feature is long gone (I think it was dropped from XE2 or XE3).
What's the alternative? It is called option sets and it is way more powerful that the default project options. YOu can read about it in the RAD Studio Doc Wiki at http://docwiki.embarcadero.com/RADStudio/Rio/en/Option_Sets_Overview. Here are some notes from my "Delphi 2009 Handbook" adapted to 10.3 Rio and with new images.
In the Project Manager you can select a build configuration and export its settings to an “option set” file. This is like saving a configuration template or skeleton to an external file, and the configuration will be linked to the file. You can create a new option set starting from the Project Options dialog (save) or apply an existing set:
This makes it easy to move those same settings to a new or another existing project, as you can use the Project Manager (using the Apply Options Set local menu item while on a build configuration) or the Project Options dialog box (using the Apply Options button) to import a set of configuration options. In both cases Delphi opens up the Apply Option Set dialog box, in which you can pick a file and choose whether to keep the external configuration file linked (so that a change in the file will be reflected in the projects using it) or simply merge the current settings using some priority rules.
Once you have created an external option set on a file, you can edit it from any project referring to it, using the Edit local menu of the Project Manager pane:
This opens up the an editor containing a subset of the pages of the Project Options dialog box, as shown below:
The .OPTSET file is an XML file with a format similar to the .DPROJ format, again based on the MSBUILD XML format, and an OptionSet project type. This is a simple example of its contents:
While this is an old feature, I'm pretty sure a few of the RAD Studio and Delphi users might have missed it. Notice that having multiple proejcts with settings linked to the same option set allows you to edit the configuration of many projects at once, and still override the default in each individual project as needed.
This is one of the most annoying bugs in the IDE. I'm always checking twice that "All Configurations" is activated before changing the version information.
But if you modified the wrong configuration you can edit the project file manually and remove the version information from the specific configuration section.
Also using a version control system helps a lot. You can see in the difference that you modified the wrong section and you can easily revert the modification.
When I start a new project I remove manually all version information from all sections but "Base".
This is really a great feature, i've been using it since it is available, but the version info is still a nightmare, i can't revert it back to inherited value like all other options, so once i change a version info of let say in the Release Configuration for Win 32, i can't revert it back to it's ancestor configuration like in the All Win32 Configuration or event to OptSet. This is annoying since most of the information should be the same for all configuration, but sometimes i changed accidentally in the debug or release configuration, and so it will not updated to it's ancestor value if it is changed