The problem: there is 3 verses and “d.s.” don’t let me to set the number of times it could repeat. I can add a custom text (for example D.S. 2x), it works for engraving, but not for playback.
It’s only 6 bars longer to just copy out the 1st and 2nd ending. Then you can replace the D.S. with a normal repeat structure, which you can set to Play 3 times in the Properties. That also reduces ambiguity for the players.