Try this, it may be help you and achieved your requirement partially.
echo**********************************************************************
echo TEST SUITE ITEMS
echo**********************************************************************
echo TP001_TestItem1
echo TP002_TestItem2
echo TP003_TestItem3
echo TP004_TestItem4
echo TP005_TestItem5
echo **********************************************************************
set /p "Input = Please select any one suite, from TEST SUITE ITEMS"
echo %Input %
"C:\Program Files (x86)\SmartBear\TestExecute 11\Bin\TestExecute.exe" "C:\XZY Automation\ProjectSuites\XZY_Automation\XZY_Automation.pjs" /r /p:XZY_Automation /u:TP_XZY /rt:%Input % /exit /SilentMode
Save above code as .bat and run it. it will ask you to select a specific TestItem. when you enter your specific item, TestExecute run it.