[Feature] Can you customize widgets between preview and confirmation below the selector?可否在选择器下方，预览和确认之间可自定义小部件，或新增属性用于开启勾选原图

[2282747917]

Version information

• Device: e.g. iPhone X
• OS: e.g. iOS 14.7.1
• Package Version: e.g. v2.4.1
• Flutter Version: e.g. v2.5.0

Is your feature request related to a problem?

Describe the solution you'd like

Describe alternatives you've considered

Additional context