Actions on an Object in a Tree
In a tree in the browse area, when you click on an object, its properties open to the right of the tree:
In a full page tree, when you click on an object, its properties open in the edit in place of the tree.
In a tree, other actions on an object are available:
when you hover the cursor over the object row
when you right-click the object, in its contextual menu
Actions on the row of an object 
In a tree, when you hover the cursor over an object row, a list of buttons pops up:
in the first part of the list, you can perform common actions on the object
the second part provides direct access to collaboration features related to the object
 
Icon
Action on the object
For more details, see:
Quick access, to define specific characteristics of the object
 
Connect the object to an object type to which it can be connected
Remove the object from its folder (and/or delete it from the repository depending on cases)
Open the diagrams describing the object in the edit
Create a diagram in the edit area
Display the object properties in the edit , to the right of the tree
Display the object properties in a new tab
Add the object to your favorites
Follow the object to be informed of all the modifications performed on this object
 
Object pop-up menu 
To access all commands specific to an object from a tree:
*Right-click the object row and and in its pop-up menu, select the action.
E.g.: the contextual menu of an application in the Enterprise Architect profile.