Add chess/tiles on board object, these chess/tiles could be placed at layout editor.
Categories > Board > rex_layout2boardIntroductionLinksDependenceUsageAdd chess to boardGrid width and height
Configure layout editor
Snap to gridGrid width and Grid height 
Set layout (squareTx, or hexTx) object
Width, HeightAction:Put chess on board
Logic Z=0)  firstOrthogonal board (sample capx)

Isometric board (sample capx)
