Due to MacOS security constraints it is currently not possible to use the standard file open and save dialogs. As a consequence, you will not be able to open arbitrary (ChordPro) files, and save changes into arbitrary files.
The advised way of using ChordPro is by double-clicking a ChordPro
document in the Finder. Alternatively you can use drag and drop, or
the Finder Open with ...
command.
ChordPro is currently limited to one document at a time.
When ChordPro is started with a document, you can make changes and save your changes into the document.
When ChordPro is started without document, it presents a dummy document containing just a title. You can edit and preview but you will not be able to save your changes.
Hint: You can use Select All (command-A) and copy and paste to transfer the contents to somewhere else.
Due to MacOS security constraints it is currently not possible to select a custon config file using a file chooser. Instead, you can type the name of an existing config file in the Preferences dialog.
Printing from the Finder is like opening.
The ChordPro 'app' has two binaries: the ChordPro GUI program (default) and the command line version. Provided the dmg is mounted in its default location, you can run the command line version from a Terminal window with:
/Volumes/ChordPro\ Installer/ChordPro.app/Contents/MacOS/chordpro
Consult www.chordpro.org for information and documentation.
Please join the user forum for support and the latest updates.