private void browseDataTreeFolders() {
		final DataTreeDialog dataTreeDialog =
			new DataTreeDialog(this, "Choose a project folder", CHOOSE_FOLDER);

		dataTreeDialog.addOkActionListener(e -> {
			dataTreeDialog.close();
			sessionFolder = dataTreeDialog.getDomainFolder();
			folderNameField.setText(sessionFolder.toString());
			statusChangedCallback.call();
		});
		dataTreeDialog.showComponent();
	}
Presents the user with a tree of the existing project folders and allows
them to pick one
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/gui/wizard/session/SessionConfigurationPanel.java