Multi line text in sequence lifeline header box

Is it possible to have multi line text in a sequence lifeline header box?

We have added lifelines, then enlarged the text to 16pt. This spreads the text over multiple lines, but only first line will show in the lifeline header box. We can expand the header box horizontally, but when shrinking the text is trunkated with thre dots “text…”

All the text appears in the grey menu bar above the diagram.