one Object Merge path parameter exposed: Unreal has 2 slots?

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I'm making a simple HDA to copy a megascan mesh (brick wall) multiple time on X and have all meshes stacked perfectly. The goal is to end up with points containing the s@unreal_instance to end up with instances of that mesh.

Currently, I only have the Object Merge path exposed (and the number of copies). Yet, in Unreal, I can see one slot in my "Houdini Parameters" and one slot in "Houdini Output". When I test it out, I can see the top slot controls the distance between copies and the bottom slot controls what mesh I see in the viewport.

I only have the object merge path exposed. Why do I end up with 2 slots in Unreal?

Edited by olivierth - May 16, 2022 14:31:05

objMerge_copy_Channel_01.JPG (106.2 KB)
objMerge_copy_Channel_02.JPG (50.1 KB)

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