Follow what the other guy told you, there's no other or separate space to upload it but in the space for education. Your degree CERTIFICATE, eca, IELTS should be scanned together and uploaded there.
Oh you have two. That's a little odd as most would only have one.
So in my opinion.
1. Education (degrees) - upload the education certification, WES proof and if you want IELTS results
2. Education (transcript) - upload the education transcripts of the corresponding degrees
For IELTS I was told CIC can check it based on the info provided earlier but you can upload it under education if you want.
check this out
http://www.canadavisa.com/canada-immigration-discussion-board/ready-reference-steps-to-follow-and-documents-to-arrange-post-ita-t455826.0.html