Mmmm .....
Generally co-pilots will work the same roster as the Captains ...
Which 'might be' 5days ON then 2 days OFF ... depending on Ops requirements of course ....
Conversion of license depends on what the 'training' department determines you require ... this usually comprises of some sort of 'handling' check an I/F ride then they will apply for a license on your behalf ... after a short period of time you then go to write the GCAA Air Law exam and if you require it the ELP (English Language Proficiency) test.