Hub can be accessed using the Hub link in the navigation bar. It is where you'll find the stored documents and files that you have access to.
Hub is owned and controlled by your Blink administrator. They create the folders which live inside Hub and choose which Blink team has access to it.
Organisation administrators can create new folders and upload new files by opening the Blink admin panel and choosing Shared Content from the menu bar.
In the admin panel, you can see that some items are posted to PATATAJ Ltd and some to HR, this means that you can tailor the audience of the uploaded items to only be visible to your desired audiences.