How to add extra notes in measure?
I have been re-writing sheet music from paper to here on my computer to digitalize it, so I can save it as a midi, however, I have come across this problem where I cannot add extra notes in my measure. I have a picture of the piece here too, as an example of what I cant figure out how to do. It is right at the beginning here, and a few other places with the number above, indicating how many extra notes there are. I have tried grace notes, but it makes for uneven balance; I need just normal notes. The piece is in 6/8. 
Comments
Interesting. Really, those *are* grace notes by the looks of it. But then you have four "regular" eighths in the space of three. And they definitely can't all be regular notes - that's *eight* in the space of three.
So it's a tuplet, even though not clearly marked as such. I'd create it by selecting dotted quarter as the duration, Ctrl+4 to make the tuplet, then add the grace notes.
In reply to Interesting. Really, those by Marc Sabatella
The first grace goes on the up of "1" and a grace on each "1/2" beat thereafter. Those are in quotes since they are not truly those beats. There is no grace on the down of 1 (no quites it really is the down of 1). The 8 with the arc is identifying the measure as a dotted 1/2 8tuplet. Since there was no time signature I didn't even look at the unusual number of beats in the measure.
In reply to Interesting. Really, those by Marc Sabatella
Oh yes, the notes an octave above are grace notes. That is not the problem, if you see the "8" above the measure, it shows that the "real" notes that are counted, there are more of them than it fits inside the measure, if you know what I mean.
In the first 2 treble measures, those are definitely grace notes in the original. If by "an uneven balance" you mean the grace notes spread the measure out too much, you can select the grace notes and regular notes (not both types at the same time) and adjust the leading and trailing space and if necessary move the entire chords (do not move the segment. All if these numbers can be positive or negative. If you decide you don't like the set up and want to start over then click the black arrow on the right to reset them.
In the bass those are of course in two voices. But you didn't mention problem with that.
And in 11th measure: what is these flying 16th notes (top):
a) is it for "optional playing"? (possible) example: b, d, g, b, e, g, c, d, a, b, c, d
b) is a second voice? (i don't know)
in same measure:
What is that slur from "g" note to nowhere: (We have already an slur on top, which is covered to whole measure)
a) is it means: if you don't want to play these optional notes, stay on that "g" note? example: b, a, g, f, e, d, c, b, a, g...
b) or is it another slur for (already slurred) "b, c, d" notes?
My interpretation:
The first measure has 8 notes in the space of six. It is indicated by the '8'. It is created by selecting the whole-bar rest (dotted half-note) and pressing [Ctrl]8. The high notes are grace notes on 2,3,4,5,6,7,8 and the bass stave notes are just standard for the Time Signature.
"And in 11th measure: what is these flying 16th notes (top):
a) is it for "optional playing"? (possible) example: b, d, g, b, e, g, c, d, a, b, c, d
b) is a second voice? (i don't know)"
---Second Voice, high notes played on the 2nd, 4th, 6th, 8th. The rests are hidden for both Voices.
"in same measure:
What is that slur from "g" note to nowhere: (We have already an slur on top, which is covered to whole measure)
a) is it means: if you don't want to play these optional notes, stay on that "g" note? example: b, a, g, f, e, d, c, b, a, g...
b) or is it another slur for (already slurred) "b, c, d" notes?"
---Slur G/B thru C and D. I think the upper slur (over the whole measure) is more of a phrase mark.
In reply to My interpretation: The first by underquark
Measure 11 is a mystery to me as well. Calling the arcs a slur in piano music is not totally correct, they are actually phrase marks. The phrase mark over the entire measure and the phrase mark over a part of the measure is not too unusual in piano music. The 3 16th notes at the end of the measure have the small phrase mark on them, they are not part of the G. The B above the G starts a new phrase and the next 2 16ths finish the measure making a total of 12 16th notes. At first glance the disconnected 16th look like grace notes for the "e" and "a" beats (counting 1 e and a...) The total lack of rests in the measure do nothing to clarify the measure at all. (I think I saw a conversation about that over the last few days).
In reply to Measure 11 is a mystery to me by mike320
Also, so with the CTRL plus number, how do I add more than 9? Because I cannot push for 11, I will just get 1, twice, which doesnt work. There is no 11 key haha. Is that just a computer hardware problem then?
In reply to Also, so with the CTRL plus by Bolesna
Notes > Tuplets > Other...
In reply to My interpretation: The first by underquark
You answered my question! Thank you very much! CTRL plus the number of notes you want crammed in there. Awesome.