Hi,
Thank you for reporting this issue.
We also observed that SQLyog editor’s behavior is not same as other editors on pressing END key if word wrap is enabled. We have used third party library in SQLyog for rich editing experience of users and it seems their implementation of word wrap is not identical with winapi (atleast on END key). Anyways I have added this issue here-https://code.google.com/p/sqlyog/issues/detail?id=2070
We will look into it and update more here.
And we are sorry It took more than a week to reply here.