XF 1.5 Can you change default text a user sees when they don't have permission?

Hi All,

When my members follow a link that takes them into a section of the forum that they do not have permission to view they get a message 'You do not have permission to view this page or perform this action'.

Is it possible to change this text to something like 'You have entered into our premium members section, please click here to sign up as a member'?

Thanks in advance,