Yes there is, but you have to head over to the beta version of V3 to access it. So scroll to the very bottom of the page, down by the green pawn, and click on Try the new Chess.com!. You have to sign in again and then there's a big list on the left. Naturally you choose Tactics. Now just under the orange Start Training button you see + sign. That enters you into custom (unrated) training where you can filter your problems by tactical motif, rating range, and even choose to just review problems you missed. Oh and there's an optional hint button too. Good stuff, enjoy!
Tactics Trainer Question
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If I want to work on a specific tactic, is there a way in tactics trainer to filter so that only tactics which fit certain tags (ex. decoy/deflection) appear?
Even if this would force the puzzles to be unrated, I would love to be able to work on specific themes.