How to have three 1/8 notes fit into one 1/4 note?

Hi, I don't know how to ask the question correctly, but let me try to explain...

In one measure I have (from beginning to last)...

One 1/2 note, 1/4 note, 1/8 note <--(with 1/4 note beneath that!), 1/8 note, and 1/8 note. And then the next measure begins. :)

On the sheet it says that the first and last of the 1/8 notes are (tied?) and between the (tie) is the number 3.

I just want to know how to input this into the program. AND, I'm not at all interested in the 1/4 note that is beneath the first 1/8 note. I just want the top notes only <--(soprano?).

Any help is appreciated! Thank you!