Problem in displaying note as I want it

[eamonx1]

Sherry I am back to you again. I had no problem with my other two queries. This one I cant do it. You told me to 1) selecting the Eb note and (2) hold the "E" (enharmonic) on your keyboard and press the up or down arrow key to change. I assume these are Two Steps in the process. How do I select the Eb note? I would first select the E and put it into the score. Then I would select the flat and click on it - the E in the score automatically now displaying the flat. Is there another way so that I can enter the Eb with one click and hold that click down, then move the arrow key up or down. You can see I am a little confused.