🚀 go-pugleaf

I am a fairly sophisticated user but I cannot find the source of this problem.

I am trying to adapt the FM sample template Bk7.fm. When I open the file in FM, I receive the message that Helvetica Bold, courier, and Times fonts will be substituted. Fine. Then I go into the doc and check every paragraph and character tag in search of these fonts so that I can change them permanently to fonts that are on my system. I cannot find these fonts anywhere in the document, on the master pages, or on the reference pages. I have also loaded the helvetica and times fonts (don't have the courier) and then searched for these fonts in the doc and I still cannot find them. The error prevents any autogenerating to pdf, etc. because of the error messages. Can anyone help me discern where these fonts are used in this template????? It is driving me crazy!!!!!!
Many thanks in advance.

M.