Simple Addition to Existing Macro

EE Pros,

I have a nice little Macro that watches for a seletion from a list that when it is selected, it automatically displays the appropriate Tab.  There are actually 2 selections (N22 and N23 are the cells that change).  And when the cells are cleared, the Tab goes away.  It works.  However, now what I want is that when I select a particular list variable (
in N23), I want to display several tabs that are hidden... not just the one selected from the list.  How do I enter a line of code that adds the other Hidden Tabs and how do they vanish if the cell (N23) is blank?

Thank you in advance.


Private Sub Worksheet_Change(ByVal Target As Range)
    Dim ws As Worksheet
    Dim TabToHide As Variant
    If Target.Address = Range("N22").Address Then
        On Error Resume Next
        If Target.Value = "" Then

            For Each ws In ThisWorkbook.Worksheets
                TabToHide = Application.Match(ws.Name, Range("Tablist"), 0)
                If IsNumeric(TabToHide) Then
                    Sheets(ws.Name).Visible = False
                   
                    Sheet20.Visible = xlSheetVisible
                    Sheet20.Activate
                End If
            Next ws


        End If
        Sheets(Target.Value).Visible = True
        On Error GoTo 0
    End If

    If Target.Address = Range("N23").Address Then
        On Error Resume Next
        If Target.Value = "" Then

            For Each ws In ThisWorkbook.Worksheets
                TabToHide = Application.Match(ws.Name, Range("Typelist"), 0)
                If IsNumeric(TabToHide) Then
                    Sheets(ws.Name).Visible = False
                   
                    Sheet20.Visible = xlSheetVisible
                    Sheet20.Activate
                End If
            Next ws

        End If
        Sheets(Target.Value).Visible = True
        On Error GoTo 0
    End If
End Sub