Yes, I did. And I unpacked them so I could upload only the def files, and not the entire pac file, which contains a good deal of more things. But if that is the only difference...
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It is rather simple. Data must contain .pac and objects folder/myobjects.txt. If zeobjts correct, every object added in this way will show in editor.
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The pac certainly was in the data folder as all the other content was showing in the map editor. Maybe I simply overlooked the walls in the editor then... Anyway, I do appreciate that they work now.
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