How to display my key BINGDINGS in the footer?

[Zim-Inn]

class TableApp(App):
    BINDINGS = [
        Binding("a", "accept", show=True, key_display="(A)ccept all", tooltip="保存全部"),
        Binding("e", "edit", show=True, key_display="(E)dit", tooltip="编辑单元格"),
        Binding("?", "show_help_panel", show=True, tooltip="打开帮助面板"),
        Binding("escape", "exit_focused", key_display="ESC", tooltip="退出焦点元素"),
        Binding("ctrl+q", "quit", key_display="Ctrl q", tooltip="直接退出", show=False),
        Binding("ctrl+p", "command_palette", key_display="Ctrl p", tooltip="打开命令面板", show=False),
    ]

    def compose(self) -> ComposeResult:
        table = DataTable()
        table.add_columns("ID", "姓名", "年龄")
        table.add_rows([("001", "Alice", "25"), ("002", "Bob", "30")])
        yield Header(name="表格编辑")
        yield table
        footer = Footer()
        footer._bindings = self.BINDINGS
        yield footer

"""
and more other impls
"""

I set my app as above and the bindings event actually work.
But the app footer doesn't display my bindings except the defautl Ctrl P

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This is an automated reply, generated by FAQtory

[willmcgugan]

• Don't set _bindings (anything beginning with an underscore is private, and you shouldn't modify it)
• Give your bindings a description (third field or set description="Accept all")
• No need to set key_display

Be sure to read the tutorial

[Zim-Inn]

By the way, how to custom cursor blink style in Input obejct?
The default style is a block, but i want to set it as a bar |