Footnote numbering can use any of the counter type values listed in Table 8-2 (default Num), followed by a reset value of None or Topic (default Topic), to specify what restarts the footnote numbering stream.
By default, text footnotes are in one stream, and table footnotes are in another stream. If you want table footnotes numbered in the same stream as text footnotes, change the stream named in both [TblFootnoteNum] and [TblFootnoteRefNum], in format configuration template %omsyshome%\d2g\formats\d2g_subformats.ini; or override the stream name in your own version of these number format components.