Yes, “do” was probably the wrong word to use, and I misinterpreted your intent to some degree; sorry.
You probably contribute at least 60% of your Plan’s levies and that certainly enables, and maybe entitles you, to responsibly influence how the entirety of those funds is spent.
Using your example of maintenance funds expenditures, you can certainly put an appropriately worded Motion on the Agenda of your Annual General Meeting that directs that expenditure towards those activities that you regard as a priority, and use your majority vote to pass that Motion.
My only advice is that you use your majority vote responsibly, and that ideally, you engage with the other Owners, because as I said before, any of those Owners who regard what you do as self-serving (e.g. just benefiting you/your lots) and/or as disadvantaging them can make things difficult; even if their concerns are groundless.