Hide Submit for Employee In Performance Document

Summary

Trying to Hide Submit for Only Employee

Content

We are trying to hide the submit button in the Performance Document for Employee Only. 

There is an expression to hide submit for Manager only here:

#{pageFlowScope.pSubmitRendered && pageFlowScope.pDocumentInfoMap['pPerformanceTaskCode'] != 'MGREVAL'}

Can this be done similarly for only Employee? We will need to do employee first and then Mgr after. Can we combine two expressions if one is available for Employee only?