BLUF: Apparently, I’m an idiot and I need help. I need to run a macro when the value in cell $O$2 changes.

I have a workbook with 100+ sheets each tracking an individual work ticket. Each sheet is exactly the same (except for work notes). I want to run a macro named, “Insert_NEW” when I hit ENTER and the cell value of $O$2 changes versus manually clicking a button to run the macro 100+ times a day. I know I’m overlooking something simple, but I’ve spent almost 4 hours trying to add this feature when it can probably be resolved in 1-2 minutes. The goal is to embed the updated script between the EnableEvent update true/false. Thank you in advance for any assistance.

I have this existing script:

Private Sub Worksheet_Change(ByVal Target As Range)
    If Target.Column = 15 Then
        Application.EnableEvents = False
        Cells(Target.Row, 27).Value = Date + Time
        Application.EnableEvents = True
    End If
End Sub

I’m trying to add the script below to run the existing functional macro named “Insert_NEW”.

    If Target.Address = "$O$2" Then
        Call Insert_NEW
    End If

I’ve also tried

    If Not Intersect(target, Range("$O$2") Is Nothing Then
        Call Insert_NEW
    End If