I'm going to run the RTA for Soul Hackers 2, but I want to run with the new game +.

However, there is only New Game in the leaderboard category, so I would appreciate it if you could add New Game + category.

分かりづらいですがNG+は既にありますよ。(右上の矢印を押すと出てくる)

It's hard to tell, but NG+ is already available. (Click the arrow in the top right to see it.)

I can confirm as I have ran NG+ for this game, you have to click the arrow in the screenshot right of the categories to see it.