One caveat to all this, importing the variables through FM, is that the system variables also are included (e.g. running header variables, marker1,marker2, etc.). This may mess some things up, depending upon what you've got going on in your master page running headers/footers, tabs, etc. The only way to avoid including these system variables is to create a "MIF snippet" file that only has the required variable definitions in a simple text format. You can have multiple MIF files for different categoies of variables, as boreal suggests, and then import this (these) MIF file(s) by copy into FM to avoid including the system variables. A simple and effective way to maintain these snippets is to use a spreadsheet to define the variables and definitions and create an export utility in the spreadsheets programming language to export the content as a properly formatted MIF. You can include the spreadsheet file as part of a book/project file as well (FM ignoes these files for output and generation).
... View more