How can I hide the queue for employees in HR Help Desk (Classic)?

To hide the queue field in create request page for a particular role, set the hidden property of Queue field on the page layout to Expression with the following Groovy script.

def secCtx = adf.context.getSecurityContext()

if (secCtx.isUserInRole('<RoleCode>))

return true

else

 return false

Note:

Replace the Role Code value with the role for which the field needs to be hidden.