Thanks for the reply. I have found the problem that was causing this. I need to answer that I had taken an IRCC medical exam and answer "Yes" to the GIC, tution payment and IELTS questions. Once I did this, the upload areas for IELTS result, GIC, proof of tuition payment, proof of upfront medical exam are all present now. Before, my answers led to incompatibility with Student Direct Stream, but now, I am eligible and all of the SDS specific documents all showed up.