To embellish what Matthew said: do refer to the reference manual about door/window insertion and the 'eyeball' cursor. Your first click places the door, the cursor will not be an eyeball - the position where you click the eyeball indicates two things (a) the exterior and (b) the hinge side. If you want the door to swing inwards, you'll select it after this step and click the 'flip' button.
Clicking the eyeball cursor on the exterior has been important, at least with the US library, for 10 or so years now as the US library parts accommodate different 'exterior' vs 'interior' finishes/materials (e.g., for clad doors/windows)...to say nothing of sill/stool details/etc.
[Edit: just looked at the AC 16 help file, and the text is very out of date - not mentioning exterior/interior. And, at least on my screen, the eyeball icon is too small to really recognize.]
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB
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