Preview tiles with the UP/DOWN arrow keys
Currently, when you select a tile with the mouse, its preview image is displayed. However, if you want to view the preview of another tile, you have to click on it with the mouse. This becomes time-consuming and requires a lot of unnecessary clicking, especially when browsing through many tiles.
It would be much more convenient if pressing the Up or Down arrow keys to navigate between tiles also updated the preview image automatically. This would make it much faster and easier to browse tiles without constantly reaching for the mouse.
(Please watch the attached video to see exactly what I mean.)