First, enter the chord edit overlay.
Use the arrow or tap on the quality name in the second column.
You can change between: Major, Minor, Sus, Power 5 (Powerchord), Dim(inished) and Aug(mented).
👉 When tapping on the quality name, you can select a specific quality.
The dot in front of the quality name indicates whether this quality is within the key, related to the selected root note.
The quality relates to the root of the chord, not to the optional tones.
F major 7 is an F major chord with a dominant seventh (b7). NOT with a "major" 7.