The best way to add band labels is to firstly draw linework in the drawing where you want your labels to go, then use the layer of objects to set offset positions for labels to display in your cross section outputs. The videos below show that process, however they don't directly reference the training material. You can explore this functionality on your own data sets.
Setting up a Title Block
This video takes you through the steps involved in setting up your own title block to be used when you create long and cross section sheets.