[Urwid] Suspend Urwid-Interface and Key-Combos with return?

[Christian Scharkus]

Hi folks.
It's time for some more questions I think :D

I would like to know if there is any possibility to suspend the
curses_display of urwid to start something like links from my app to show
websites etc.

Second it would be nice to have keycombos given from get_input() like "shift
enter", "ctrl enter" because I would like to be able to make some newlines
in the chat-client I currently write.

Thanks at this point for any ideas you may come up with :)

greetings
Christian Scharkus
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