Can I adjust lock out time somehow?
Now it is quite short and I end up entering the master password everytime I enter new site...
"Improving configurability has been requested as peoples preferences vary quite a lot-Such as for the timeout value for locking the screen and requesting master password again. We are likely to have that in the future releases"
according to a comment by JuhaT in the Idea Exchange forum:
There are other suggestions for Key as well in the Idea Exchange. As a registered user you can suggest new ideas, comment on other ideas, and vote(give Kudos) to other ideas you like.