45 AT A TIME
That's right we moved the limit from 30 to 45.
We tested 50 and found that the json size limit is actually about 46.
But 45 works for both steemconnect and keychain which was just publicly announced by 
many of you have already found the new ability... but to the rest we hope this saves you a little bit of time, energy and RC having to do less transactions.
COMING SOON
I've been testing SHIFT+CLICK for buying cards. It's a HUGE time saver on a bulk market that's already a time saver. Look for it as soon as later today.