music creation issues

HI,

What I am trying to do: create chords that use the same note through octaves. For instance middle c, then the c notes an octave above and below it. Why I am finding this hard to do: since I don't have a midi I am putting the notes in with my mouse. It isn't clear to me how to do this. First, I think that alphanotes has some kind of bug because it gives the g clef g note as a different note and that can't be right. To my knowledge I have not changed the settings for notes either. I want to bang in middle c and the 2 C's either octave side and have a chord. By the way if I sound like a musician I am not. 41 year old absolute beginner to music who is reading 10 books; last year I did not know what a note was. So if I am not using correct musical terms that is why; I am trying my best to be clear. There is a "chord" tool in the ribbon - could that help?

please help

I did not find the right solution from the internet.

References:
http://www.finaleforum.com/viewtopic.php?f=3&t=14155
Animated Explainer Video Company

Thanks!