But whenever I encode a movie using makemkv I select both subtitle tracks as such:

However I end up with only one 1 subtitle track. I believe makemkv is merging the two.
Is it possible to have a 2 subtitle tracks: one for forced only & the other for all subtitles?
Note I have read: http://www.makemkv.com/faq/item/10 which doesn't clarify what's going wrong
Thanks,
Ryan