Hi
Thanks for the response, however this does not solve my issue, I was perhaps unclear, sorry. In a SQL window, if you hover over a package name while holding CTRL, it "hyperlinks" - however left (package spec) or right (package body) mouse click both then open in a new window as "File is Read Only".
I tried altering the options you mentioned, but regrettably this hasn't helped.
Any other ideas gratefully received.