That i what i would do in your situation yes. They will be able to see for themselves the history of your stay anyway.. Also there is another form (I have just submitted my schedule A and its in there) where it gives you the opportunity to lay out all your varying circumstances..Thanks for the reply.
So, would I be right in saying that would be:
Country: Canada
Status: Worker
Start date: February 2016 (that was the date the Post-Graduate Work Permit began; I had been in Canada continuously since January 2014, firstly as a student)
(Note - Schedule A gets requested at later date when your app is in progress)