Amnesia Editor Mansionbase Floor Issue.

[Ongka]

The "floor" in the mansion base is not a static object, rather it is a tiled plane.

You can place one by selecting the primitives tool (With the cylinder, and cone icon), and then select your desired material to apply to your plane. After that, just simply drag out your desired floor.

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You may consider setting the tile amount to something between 0.25 | 1 | 0.25 and 0.5 | 1 | 0.5 in order to make it less repetetive.