Adding option to clear text

[RichardZhu123]

I believe currently there is only a function to type[]. However, if there is already text in the field, there is no way to clear the text.

Is it possible to add a clear[] function?

[shuyanzhou]

It is possible to add another action; however, this would also grow the action space.

The ways to delete the existing content in an input box are

• press [meta+a] to select all, then press [backspace]
• press [backspace] for k times until empty.

[shuyanzhou]

Check out #36 for an example