Excalibrain: can we increase number of levels shown?

Using Excalibrain shows, by default, three rows of notes: parent level, current selection level, and child level. Friends can also be on any of these three levels. Is there a way to see more than three levels at once? Can we extend what is shown to 4, 5, or 6 layers? E.g., grandparents—parent–children–grandchildren–greatgrandchildren? Thanks.

What I’m trying to do

… is increase the number of levels shown.

Things I have tried

… include spending and hour Googling and watching Excalibrain YouTube videos.