This option is available just within the Furnishings section.
If you click over a typology, you access the following page, where you can see a preview of each item.
Here you can immediately check which items are already installed in your Application (marked by the check symbol in the lower-right side of the time-tile).
But, also, you can move the mouse over one of the, and as soon as you see the Download Arrow; click the left mouse button in order to confirm immediate download.
In this way the element will be immediately downloaded and installed in your library.
This is a useful option in case you urgently need to download just a few items, and you do not want to get complete typologies or manufacturers.
This article is valid for DomuS3D® 2017 and later versions