Yes it’s a few steps to get there, haven’t found a faster way yet.
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Select My Disney Genie Day or Tip Board Above
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Under this tab go to my day and select change Day and select the date for your park reservation. It should show which park and that you have reservations.
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Where it says you are good to go you can hit the … to the right and tap Get Details to see who is in your party for the reservation.
ETA: If you are looking to find your entire plans for all of your trip you can use the search function of the app and search for “View My Plans”