You must select something (object) and make sure it is high-lighted in the application you want to copy.
Usually you can right click to bring up a supplemental menu.
Select Copy then go to the application you want to paste the object into and right click and select Paste.
In human-computer interaction, cut and paste or copy and paste is a user interface paradigm for transferring text, data, files or objects from a source to a destination. Most ubiquitous is the ability to cut and paste sections of plain text. This paradigm is closely associated with graphical user interfaces that use pointing devices.
Performing cut and pastes
The text to be moved is selected by some method, typically by dragging over the text with the pointing device.
A cut operation is performed by key combination, menu, or other means.
The visible effect of the cut is to remove the text immediately from its location.
Conceptually, the text has been moved to a location often called the clipboard. The clipboard is typically invisible. On most systems there is only one location in the clipboard, hence another cut operation overwrites the previously stored information. Multiple clipboard entries are provided by many UNIX text editors and some Windows clipboard manager programs that are available over the Internet.
A location for insertion is selected by some method, typically by clicking at the desired insertion point.
A paste operation is performed which visibly inserts the clipboard text at the insertion point.
The paste operation is nondestructive; the text remains in the clipboard and additional copies can be inserted at other points.
Have fun but be safe.