Set up all of your macro definitions using the macro editor. You
need to press the "Apply" button in the macro editor for each
changed macro that you want to retain.
Execute menu item "File | Macros | Save" This will open a standard
Win8 save dialog box.
Negotiate the Window file labyrinth to the folder
C:\Users\<username>\fldigi.files\macros\
You should find a single file with the extension mdf
macros.mdf
You can either overwrite that file or create a new one as in
Be sure to press the "Save" button.
Now open the fldigi configuration dialog to the macro tab
Check the bottom three boxes and press the "Save" button.
Close down fldigi and restart. You should see something similar to
when fldigi starts up.
All screen shots from a Win 8.1 system.