At this time you can not import the mobile
Chameleon Pay private key into the desktop
Tornado Wallet nor into the desktop
TK-Wallet.
You would have to send the BIS amount from the the mobile wallet to the desktop wallet.
This is quite awkard, to have the private keys and to have the only option to import them only on a 2rd party app.
What will happen with the users funds if the provider will end up support for the wallet.. The wallet is cool and the addressed are also nice Bis1... but this is a problem if you keep large funds in the mobile wallet.
They wont withdraw support b/c third=party guys are motivated to develop for Bismuth team. They are tipped, or, supported materially if you like, by Bismuth team. B/c if they stop coding whatever they code, their massive holdings will turn to dust, or, dandruff if you like. Bilateral ties between the two, see? Money will stop coming so wallet guys will lose a milking cow and will be forced to fend for themselves. On their own. They wont survive.