I saw this app sections functionality demo'd at Unite and I would love to test this out myself. I have a development store with the Unite 2019 preview enabled, but I can't seem to find how to do this. If someone could point me in the right direction that would be most appreciated.
"For Shopify Partners, these updates will also unlock new app sections, giving merchants the ability to add apps to their storefront, just like they would any other section. We’ll be releasing a storefront app extension for partners to facilitate this."
This is a feature expected to be rolled out later this year, though there are no concrete dates.