Dear, you have limited (60) number of files to attach for each applicant, so it is wise to group documents in .pdf file up to 5 Mb.
I had them grouped like
1. First rural address - contract, all bills, inspection letters, vehicle rego, bond paper, final inspection etc...
2. Second rural address - Appendix A, all the same + Bank Statements
3. Second rural address - Appendix B, all the same - did not fit all in 1 file.
4. First rural employment - Emp. letter, Contract, all 35+ hpw payslips, PAYG, Super Fund Letters
5. 2nd rural employment - same story.
6. CV file - made a table with list of my dates, addresses, employments to show it meets 2y & 1 y conditions.
...
Thinking about your docs grouping - put youself in the shoes of the Case Officer -
would it be easy for a new person to understend your situation by this papers?
Try to organise it in the easiest way to find your info, do not produse mess.
Uploading Button appears after you Submit and Pay for your Application.
Here is help:
[h=3]Guidelines on attaching documents to an online visa application [/h]http://www.immi.gov.au/Services/Pages/attach-documents-online-application.aspx#sub-heading-1
ImmiAccount – How to attach documents to an application (415KB PDF)
http://www.immi.gov.au/helptexts/en/online-account/qrg/attach_documents.pdf
Good luck, dear, so many people here done it, and you could so!!!