How do I put on solfege for multiple notes stacked/chords? I mean, I could put it separately, but how do I indicate which solfege goes to which note?
If you are a beginner and have not practice in sight reading and using movable doremi I recommend what I practiced with my students:
Use bigger staves than we have in ordinary printed music or blow your sheet music up that you are able to write the names exactly in the place of the note heads and not above or below the lines: e.g. fa,la,do,mi in the spaces of the treble clef (in C major) and mi,so,ti,re,fa right in the line (like the note heads). The same technique is useful for beginners when learning the absolute note names (c,d,e,f,g ...)