User blog comment:Chrismh/Everybody's Coord Design! Round 1: Idol Debut!/@comment-33992758-20181111095153/@comment-3237624-20181111142339

Basically, you open the comment and hit the button that says Add Photo. It's in the bottom panel across from Post Comment. You click that, then in the Find slot in the new window copy + past the coord pieces file name. It saves a LOT of time and makes the process very quick.