private GhidraFileChooser createCertFileChooser() {

		GhidraFileChooser fileChooser = new GhidraFileChooser(tool.getToolFrame());
		fileChooser.setTitle("Select Certificate (req'd for PKI authentication only)");
		fileChooser.setApproveButtonText("Set Certificate");
		fileChooser.setFileFilter(CERTIFICATE_FILE_FILTER);
		fileChooser.setFileSelectionMode(GhidraFileChooserMode.FILES_ONLY);
		fileChooser.setHelpLocation(new HelpLocation(plugin.getName(), "Set_PKI_Certificate"));
		return fileChooser;
	}
Pop up the edit plugin path dialog.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/EditActionManager.java