In many programs, I notice that certain letters in the toolbar words are underlined. Why is that?
These are keyboard shortcuts using the Alt key. For Instance, if the word File in the toolbar had a line under the letter F, then I could hold down Alt+F to open the File menu.
Now, it doesn’t stop there. Once inside the menu, you can use the keyboard to select any of the features listed using the underlined key. Actually, in the image above, the D key needed to be pressed twice. The first time, it went to Export as PDF.
You can go anywhere just by typing the underlined letters with your keyboard. Just follow the dotted line.