From the technical tree, the user can select one or multiple items. If you only want to select a specific item, you can select it by clicking on it. The Selected icon to the left of the item indicates that the item is selected.
To select multiple items, hold down CTRL while selecting all the items you want to select from the technical tree.
The user can select all items in a portfolio by ticking the small box next to the portfolio.
The technical tree has three views through which you can search for items.
You can also search for a specific property by using the search function. Instructions on how to use the search function can be found here
The selected property / properties also appear at the bottom of the technical tree. To deactivate your selection, press the x icon by the item.