【求助】小的菜单栏从右向左滑出，可背景图也跟着滑动怎么办...

[backlay]
@playse storage=_SE10005
[layopt page=back layer=message0 visible=false]
[trans method=crossfade time=250]
[wt]
[position layer="message1" page="back" marginl=0 margint=0 marginr=0 marginb=0 opacity=0 visible="true" color=0x000000]
[image layer=3 page="back" storage="菜单" visible="true" left=20 top=0]
[current layer="message1" page="back"]
[locate x=589 y=110]
[button normal=存档关 over=存档开 target=*save enterse=_SE10004]
[locate x=589 y=157]
[button normal=读档关 over=读档开 target=*load enterse=_SE10004]
[locate x=589 y=210]
[button normal=设定关 over=设定开 target=*option enterse=_SE10004]
[locate x=589 y=253]
[button normal=跳选择支关 over=跳选择支开 target=*title enterse=_SE10004]
[locate x=589 y=301]
[button normal=标题关 over=标题开 target=*title enterse=_SE10004]
[locate x=589 y=349]
[button normal=结束游戏关 over=结束游戏开 target=*title enterse=_SE10004]
[trans method="scroll" from="right" time=200]
[wt]
[er]
在 trans 添加 message1也没效果啊 难道系统自带的效果只能这样？