Choose Insert ▶ Output from Above () to paste the nearest preceding output into the current input:

• Insert ▶ Output from Above () will only paste output from the current notebook.

Refer to the most recent output with %:

• % is short for Out[].
• % gives the most recent output from any notebook in the current session.
• %% refers to the next-to-last output, %%% to the third previous output, and so on.

Refer to the output expression with %n:

• %n is short for Out[n].
• Out[-n] gives the output n lines back.