Hey gang, I just upgraded (L4 Scholar's Gold w/ added stuff to L5 Minimal Crossgrade) this week. I'm preaching on Isaiah 9:1-7 this Sunday, and in reading the introductory materials in the New American Commentary on Isaiah 1-39, I found the following: a sentance would have a gray dotted underline, with a light gray [# highlights] following it (the "#" being different depending on the text. See below.

What is this? Is this the number of time someone has highlighted this sentence? With it being the week before Christmas, I haven't had time to watch all the tutorials. Thanks in advance for your help.
Casey