You cannot "leave no room for RQ", though you may send additional documents that clearly support your statements.
For example, if you have a passport covering relevant 4 years, all stamps are there, they are clear and they match your declarations, you can send color copy of your all passport pages, with stamp translations where required, of course. You can also include a table referencing stamps, pages in passport and travel dates. If you have CBSA and it matches declaration, you can send it as well.
You can also include letters from employers and CRA notices of assessments, these are strong documents.
The thing here is that procedure of issuing a pre-test RQ in Sydney is based merely on indicators in application form itself (triggers based on your declarations in a form), so unlikely additional documents will make any positive difference while your file is at a pre-screening in a Sydney office. Though the procedures and the rules may change any time and you can hope it will make a difference.
In any way, all your submitted additional documents will be scanned and kept on file, and at a later stage at a local office an officer will have to review all submissions for a 1st time to prepare for test/interview and to ask you additional questions, if they arise, and then for the 2nd time after test/interview to prepare memo with recommendation on your case to a citizenship judge.
The whole point of submitting anything beyond of what's required in application is to attempt to clear up any doubts in advance and steer an officer from issuing an RQ, so do not submit any documents that may only raise more questions. It's an officer's responsibility to make correct conclusions based on submissions and if there are any new doubts introduced with additional documents, officer will have to follow up, possibly with an RQ.
