You can double-click several memo symbols one after the other to open each memo in its own tab. The tab display makes it possible to quickly switch back and forth between different memos. A click on the symbol “x” in the tab line closes the currently displayed memo.
Tip: You can pull individual tabs out of the memo window with the mouse, so you can view multiple memos at the same time, each in their own Memo window. Alternatively, you can click Undock window symbol, which will also bring up a new Memo window.