To answer your question, yes, I would be more interested by the Op carried out in France (F and RF sections).
For those who are interested in SOE history, a French publishing company has started a series of books on SOE equipment. The first was released last year (radio equipment) and the next should be coming out pretty soon I reckon.
Seems she was a walt who did time (post-war) for fraud. More here on, both on Butler and the subject of Counterfeit Spies in general, a review of Nigel West's book called just that. I've read it and any interested in WW2 espionage should too:
I recently read a book by Harry Verlander called I think 'My war in SOE' all about his experiences in training, France and Burma. Good read, he goes into a fair amount of detail about equipment and the dynamics between Americans, French, Brits etc in SOE which I found really interesting. Also pretty much an entire chapter on how shit the tommy gun was. SMLE all the way!