Hi Mamee
So, if I understand this, you're concerned about which checklist you should be using for the extension application because the one that is with the application itself says "Visitor Checklist" across the top - right?
I actually hadn't noticed it said "Visitor" at the top - but
it is the only checklist provided with that extension application, so whether you are applying for an "initial" work permit (which is actually an Open Work Permit when you're applying via the inland PR process) or you're applying just to extend your visitor status - you'll still use the extension application checklist. It doesn't matter that it says "Visitor" on it, even though you're applying for an OWP.
And if you apply for an OWP, you don't need to extend your stay as a visitor, too. Applying for an OWP doesn't mean you have to go to work once you get the OWP . . . whether you have a visitor permit, a work permit or a study permit, they are all temporary status documents first (allowing you to stay in Canada), and secondly they authorize a specific activity (like work or study). I hope that makes sense. So don't worry - as long as you sent the extension/OWP application WITH your inland PR ap so that it would be received by CIC before your current status expires, you have "implied status" to stay in Canada until they complete the first stage of assessment of your PR application. When they do that, they will send you the OWP, which is your new temporary status document that allows you to stay in Canada, and you can choose to work or not.