it does have what you say think it doesn't have. I've been using this feature for more than 10 years. provided the MLP/PTP provides a .txf file (not all do). check this website and if it does (you may have to search after you log in to find the proper link) https://www.taxpackagesupport.com/ find yours then click on the link to get to that k-1 website. you can then download the file and import it. warning you may be required to fix certain items for which no specific detail is provided like line 11 of the k-1.
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Once you have the download, each partnership is separate and you have your return open
go to the file tab; click on the import link; select from accounting software; in the new window select other financial software (txf file); then click on continue; browse for the file (so best to download to desktop or anywhere else as long as you know where); highlight the txf file with your mouse; click import now
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repeat for the next one
