（测试版）允许在合作模式中在第二显示器给另一个角色一个独立的视角。
(Beta Ver.) Allow another character to have an independent view on the second display in coop mode.
0.8.5：修复一些小东西。
0.8.4：让boss入场相机移动变得正常。极大兼容其他mod的相机移动和缩放。
0.8.3：使用更安全的快捷键注册方式。快捷键可以自定义。
0.8.2：增加控制两个窗口的快捷键。增加一些窗口位置预设。修复UI显示区域不全的问题。
0.8.1：增加命令控制第二窗口目标显示器和窗口大小的功能。修复改变第二窗口大小造成的缩放问题。
0.8.0：增加第二窗口可以窗口化的功能。修复主窗口无法移动位置的问题。修复改分辨率后游戏画面区域外纹理滞留的问题。
0.7.4：修复对话框不显示的问题。修复结束时子弹银河不显示问题。修复角色走出视野的问题。
0.7.3：修复错误拉伸的问题。
0.7.2：优化性能，也许。
0.7.1：修复黑屏问题。
0.7.0：主窗口可以随意更改分辨率不会闪屏。
0.6.1：文档修改。
0.6.0：修复了画面缩放的问题。
0.5.0：测试版。
0.8.5: Fixed something small.
0.8.4: Let the boss's entry camera movement make sense. Greatly compatible with the movement and scaling of camera in other mods.
0.8.3: Used a safer shortcut key registration method. Shortcut keys can be customized.
0.8.2: Added shortcut keys to control two windows. Added some window position presets. Fixed the issue of incomplete UI display area.
0.8.1: Added the function of command control for target monitor and window size of the second window. Fixed the scaling issue caused by changing the size of the second window.
0.8.0: Added the function of windowing the second window. Fixed the issue where the main window cannot be moved. Fixed the issue of texture retention outside the game screen area after changing the resolution.
0.7.4: Fixed the issue where the dialog box does not display. Fixed the issue of bullets Nebula not displaying at the end. Fixed the issue of characters stepping out of sight.
0.7.3: Fixed the issue of incorrect stretching.
0.7.2: Optimized performance, perhaps.
0.7.1: Fixed the black screen issue.
0.7.0: The resolution of the main window can be changed freely without flickering.
0.6.1: Doc changed.
0.6.0: Fixed the issue of screen scaling.
0.5.0: Beta ver.