^Hi ane, you have 2 options to send your application (either online or by paper), in my case I chose online because the process is faster unlike when you send it thru snail mail which takes approximately 4months. when I send my docs online, I just attached my passport because that's the only requirement listed on the document checklist though I'm a little hesitant at first since they do not ask for anymore docs (like contract, LMO etc), I just made sure that they got what they needed so I contacted their call center and they said that they saw tha passport and if they needed any additional documents from me they will just email me. Luckily they didn't asked me for anything anymore. By the way this is the timeline for my application: March 13- documents transmitted online, May 10-- got my new work permit.
congrats you have ur wp! did CIC notified you for such or you just received your new WP? Hopefully we will get our WP too.
Hope this helps..