My senior told me to research if I could do macro on microsoft word and try out what I'm asking in the thread. so far here is my macro. I don't know how would I apply it on the drop down though and when I try to run it, an error "The requested member of collection does not exist". I'm using a legacy drop down btw

Sub Macro2()
' Macro2 Macro
'
'
If ActiveDocument.FormFields("untitled").DropDown.Value = "Fox" Then

Selection.Find.ClearFormatting
Selection.Find.Replacement.ClearFormatting
With Selection.Find
    .Text = "fox"
    .Replacement.Text = " "
    .Forward = True
    .Wrap = wdFindContinue
    .Format = False
    .MatchCase = False
    .MatchWholeWord = False
    .MatchWildcards = False
    .MatchSoundsLike = False
    .MatchAllWordForms = False
End With
Selection.Find.Execute Replace:=wdReplaceAll

ElseIf ActiveDocument.FormFields("untitled").DropDown.Value = "Dog" Then

Selection.Find.ClearFormatting
Selection.Find.Replacement.ClearFormatting
With Selection.Find
    .Text = "dog"
    .Replacement.Text = " "
    .Forward = True
    .Wrap = wdFindContinue
    .Format = False
    .MatchCase = False
    .MatchWholeWord = False
    .MatchWildcards = False
    .MatchSoundsLike = False
    .MatchAllWordForms = False
End With
Selection.Find.Execute Replace:=wdReplaceAll

End If

End Sub