I have the answer to your other question, of limiting users in a group to a single type of Requirement. If you want them to have access to a subset list of 2..n Requirement types, the solution is more complicated.
Make the following workflow code changes. Substitute the name of your user group where I use NewGroup and the name of your Requirement type where I use Business.
Sub Req_New On Error Resume Next if User.IsInGroup("NewGroup") then Req_Fields("RQ_TYPE_ID").Value = "Business" Req_Fields("RQ_TYPE_ID").IsReadOnly = true end if On Error GoTo 0 End Sub
Sub Req_MoveTo On Error Resume Next if User.IsInGroup("NewGroup") then Req_Fields("RQ_TYPE_ID").IsReadOnly = true end if On Error GoTo 0 End Sub