Preventing resetting of custom table footnotes

In FM 11, I have a problem with table footnotes. The default custom settings for footnote markers are *, then dagger, then double dagger. For various reasons, I cannot use * in the journal I am editing, so I reset the footnotes so that * is not there and dagger is the first option. Many times, however, when I later reopen the file, FM has automatically reset the markers so that * reappears as the first marker. How do I prevent this?