There is one script for the Y-maze assay for adult zebrafish.
There are two assets you will use. "arenas_y_maze.zs" will 'divide' the testing tank into two 'Y' arenas: one for each individual fish. "zones_y_maze.bmp" will 'label' each arm of the 'Y' separately as target zones and the central zone.
See the protocol page, Y-maze (zebrafish) for more details on the assay.