Paid gigs require a double card slot camera. I always download card 1 to my laptop (travel/paid gigs) then copy to my external HD, before reformatting both cards and continuing…good practice to get use to, having multiple copies after downloading as well
It’s a very niche feature for professionals. Why are people so worried about this. Most likely a patent troll wanting paid for the ability to offer the feature. People ask for it, so they’re giving an opportunity to pay for it…Did Sony charge for the A1 update too? Did I miss that?