just a thought, but what if you started with
D3 Sliding 01 23 > moprh>rotate... save as window ?
It works ok. But be sure you size the door properly first, and configure the fame size and other options like the Casing first . Also, since it will be missing the casing on the side( bottom of the door) you can split the window/door/morph - mirror a copy for the other half, then use the Union morph function to make it all one unit. It will look something like this
Something like that might help if you want to make your own. Otherwise you can try searching for a Triple Hung window - if this is what you mean
https://www.revitcity.com/downloads.php?action=view&object_id=4140
https://www.cadblocksfree.com/en/triple-hung-window.html[attachment=0]2020-05-22_16-12-
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