You can't do that via Find/Replace, but it can be done via a macro:
Code:
Sub MoveFootNotes()
Application.ScreenUpdating = False
Dim RngSrc As Range, RngTgt As Range, f As Long
With ActiveDocument
For f = .Footnotes.Count To 1 Step -1
With .Footnotes(f)
Set RngSrc = .Range
Set RngTgt = .Reference
RngSrc.End = RngSrc.End - 1
RngTgt.Collapse wdCollapseStart
RngTgt.FormattedText = RngSrc.FormattedText
.Delete
End With
Next
End With
Set RngSrc = Nothing: Set RngTgt = Nothing
Application.ScreenUpdating = True
End Sub
For PC macro installation & usage instructions, see:
Installing Macros
For Mac macro installation & usage instructions, see:
Word:mac - Install a Macro