• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

希望可以像设置每一个column的宽度一样，设置expandable的icon宽度。

What does the proposed API look like?

expandable={{
      columnWidth: 20,  // 新的api
      expandedRowRender: record => <p style={{ margin: 0 }}>{recor

What problem does this feature solve?

当前时间没有在可选时间范围内的时候需要隐藏此刻按钮

What does the proposed API look like?

提供 nzShowNow 参数用来控制是否显示此刻按钮

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Describe the solution you'd like
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Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered

For example: https://github.com/talyssonoc/react-katex