how to make a "shell" panel with a blinking cursor?

Hi,

I would like to create a panel that acts as a shell, i. g. has a blinking caret and allows the user to enter commands.

If I used a textarea widget, I had to catch when the enter key is pressed. In addition, I had to suppress moving around with the and modifying text. I would have much too much and I had to supress a lot.

Are there simple alternatives? I think the main problem is to get a blinking cursor...

Thanks
Magnus 

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