private void updateSessionNameIfBlank() {
		if (!StringUtils.isBlank(sessionNameField.getText())) {
			return;
		}
		if (sourceFile == null || destinationFile == null || sourceFile == destinationFile) {
			return;
		}

		String defaultSessionName =
			createVTSessionName(sourceFile.getName(), destinationFile.getName());
		sessionNameField.setText(defaultSessionName);
	}
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