Paper2D tile maps cannot be edited via the modes toolbar in viewport, after they are placed in a level and promoted to an instance

Paper2D tile maps cannot be edited via the modes toolbar in viewport, after they are placed in a level and promoted to an instance

1. Import a Sprite Sheet Tilemap Texture.
2. Create a TileSet from the Tilemap Texture.
3. Create a paper tile map assest using the Tileset.
4. Save and drag the tile map into the level.
5. Navigate to the details panel, click promote to instance.
6. Click Edit map

Result: 

Modes window does not display Tileset assets.  You are unable to select additional tiles to be painted.

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Expected:

The ability to select/edit additional tilesets through the modes window.

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