Do we need a proxy form for electronic voting?

We are a NSW strata of less that 20 lots. Does the OC have to adopt a motion at an AGM or OC meeting to allow electronic voting? I’m referring to email voting in this case – which seems easiest. Or is this a right automatically granted by the law. See below link.

If voting occurs electronically is a proxy of any form required, I think not as this would limit the voting abilities of remote lot owners as they would be restricted to only being able to vote with a proxy which is counter productive.

If voting occurs pre meeting by email, who are the emails sent to – are the secretary and the strata manager of the OC one and the same.

https://www.fairtrading.nsw.gov.au/housing-and-property/strata-and-community-living/strata-schemes/meetings-of-the-owners-corporation