row:flexible_space

Add a flexible space to the row.

row:flexible_space()

# flexible spaces are used to align and group columns together 
row:flexible_space()

# Align a column(s) to the center
row:flexible_space()
row:column("I am centered")
row:column("I am centered, too")
row:flexible_space()

# Align a column(s) to the right
row:flexible_space()
row:column("I am on the right")
row:column("I am on the right, too")

# to have a group of columns on the left, 
# and a group of columns in the center,
# and another group of columns all the way on the right
row:column("Left")
row:flexible_space()
row:column("Centered")
row:flexible_space()
row:column("Right")