def generate_grid_positions(num_items):
    positions = []
    start_x = 395
    start_y = 90
    button_width = 185
    button_height = 75
    h_spacing = 10
    v_spacing = 105

    for i in range(num_items):
        col = i % 2
        row = i // 2

        x = start_x + (col * (button_width + h_spacing))
        y = start_y + (row * v_spacing)

        positions.append((x, y, button_width, button_height))

    return positions