Ties across to second ending

It's time for a work around. The last note prior to the volta is obviously already tied to another note in the volta. So you need the tie to the first note after the repeat sign. Add a grace note (before with the same pitch) to that note. Tie the grace note to the main note. Select the grace note and press V to make it invisible. It doesn't play right, but it looks right.

To make this play right you will need to use a voice you haven't used in those 2 measures yet and put the note before the volta, then put the note after the repeat, the select the note before the volta and press "+" then make that voice in those measures invisible (use the selection filter [F6] and uncheck any other voices in those measures).

I'm fixing this post. Ignore the garbage in the second paragraph.

To make it plays right you will need to use a voice you are not using in any of these measures. In this voice, you will need to make the tie from before the volta to the note after the repeat either first or somewhere else. To make the tie you need to make the tie from one measure to the next. Select the second measure and insert enough measures (press insert) for the volta. If you are working somewhere else, then select those measure and in the selector filter (F6) uncheck any voice not part of the tie that appears in that measure (voice 1 is probably the only other one there). Then cut the measure, click the first beat of the measure before the volta and paste. make that voice invisible by pressing V. You can then check all of the voices you previously unchecked.

It is easiest to just work somewhere else since the rest of those measures are probably already entered. Just remember that you are inserting measures so you probably don't want to work in a place earlier in the score that has notes on other staves.