I apologise but I am a bit confused on what you really are asking. I guess it’s up to you whether to sell it one line or separately. Get a good realtor to help you with it and to make it stress free for you. A good realtor will explain his or her strategy in ways you can understand. Whether you sell it one line or separately, the same selling process for strata properties applies. All you need is a good realtor to pull it through. https://www.wastrata.com/