Seriously, I'm sorry to say, but these responses do not seem very helpful.
I would say take a look at the NCEES practice test and study the morning material to that level. Don't worry about the 1 hour problems in the MERM for morning sections. Most of those "1 Hour" questions in the MERM required iterations and assumptions anyways which is not only unhelpful, it's a waste of time IMO. No problem on the PE exam will require assumptions or iterations. It will require you to think on your feet though and you will see material that you have never seen before. Just be prepared to be thrown off a bit.
I felt that the morning section was much easier then expected. Although I have heard that it just depends on when you take the test (april or oct) the morning can be very difficult as well. But the NCEES practice test was a good gauge for the level of depth of those questions. For instance if you are doing T/F I would not worry about doing anything more then breezing through advanced machine design. There may be a formula or two that you will need to grab out of there so you will need to be familiar with the section, but you will not need to be able to do all the MERM problems.