void enableConnectTools() {
		Project project = plugin.getActiveProject();
		if (project == null) {
			connectToolsAction.setEnabled(false);
			return;
		}
		// only enable if project has more than 1 running tool
		ToolManager tm = project.getToolManager();
		PluginTool[] runningTools = tm.getRunningTools();
		connectToolsAction.setEnabled(runningTools.length > 1);
	}
Disable the connect tools if 1 or less than 1 tool is running.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/ToolActionManager.java