Reply to vci 100 for traktor scratch

hi can anyone help? i have a vci 100 with traktor 3 le and now want to upgrade to scratch pro. can i controll 2 decks with timecode and the other 2 decks with my vci. i have searched several community s but cant seem to find anything about this. i will be useing an external 4 chanell mixer. any advice would be welcome as i am new to digital mixing. thanks