A trick to know the tile size could be add a cube collider to it.
In the upcoming new update we have added a script to recognize the dimension of the tile.

Hi,
the scene StandardMap_SciFi contains some script setup error.

You can use the following values.
Number of Storeys -  2 (or more, 1 is ground floor)
Max Room Width and Length -  3

Sorry for the inconvenience.

Is not a bug, directional option allows to use directional tiles, so you have to activate it to see related slots. :)

Sorry for the misunderstanding.

In this case the suffix _I indicates a straight direction.
Corridor Wall I
Room Wall I
etc.

In the Choice row, you can click the circle to open asset browser or drag a prefab in directly the Choice field.

Hi,
check the Size parameters inside the prefab tile proprierties, it must be at least 1 to show an object in the array list.

Hi,

you can tweak the rotation using a simple Unity cube as father of the Prefab hierarchy.

- put the wall in your scene, at position 0,0,0 and the correct orientation
- create a Unity cube primitive at 0,0,0 position and rotation. Set the size to fit the wall volume.
- delete "Box Collder" and "Mesh Renderer" components in the cube
- set the wall as child of the cube
- save the cube with its content as Prefab

At this point you need a column with the correct size (floor tile lengh minus the wall lenght).