Is there a way to drill based on difficulty level?

According to the AI Coach’s analysis of my most recent PrepTests, there is no longer a specific question type pattern that can be found across my wrong answers — for the most part (and with the exception of an unusually bad test I took while distracted and sick), the questions I am getting wrong are the three to four level 4-5 questions on each test.

When I review those questions, I am generally able to understand both where I reasoned incorrectly and why the correct answer is correct, so I am not incapable of understanding them; however, I often make small mistakes parsing these questions and the possible answers when under time pressure. I think I could benefit from specifically drilling these harder questions to build both accuracy and speed in interpreting them.

Is there a way to drill by difficulty and not by question type?