How do you flip a tie in Musescore?
To add ties between two chords, select the stem of the first chord, or Shift⇑ + click on the first chord and press + . Note Entry mode must not be enabled. X flips the direction of a selected tie.
How do you add legato lines in Musescore?
1. I use the lines palet at the left, and select the legato and draw it to the note where the line should start. It does indeed start a legato line at the selected note. Using +, the end of the legato moves one note.