Help Enabling Settings to Use Chronus Lockscreen on SGS3 LTE

[Juliet23]

How do I get chronus clock lock-screen widget enabled in my Settings, to use instead of the standard one on my SGS3 LTE unrooted phone please?
My phone is running Jellybean 4.3

Any help anyone can give will be greatly appreciated. Thanks.

 

[Juliet23]

Problem had been resolved by changing lock screen setting to swipe instead of pin code unlock.