Lockscreen

[Thomas Pfeiffer]

> ** Proposed Change **
> Provide the feature to actively lock the screen.
> Provide the feature to actively disable the sceen lock.
> 
> ** Reason For Change **
> First need in daily use. Second needed in demo mode at a fair, where its
> not nice to see only the screenlook after 1 min.

+1 for the first one. I experience this literally daily each time I put
the tablet
down to walk. Currently I always put it to suspend, but I think locking
would
make more sense.