Fill in the Blanks is a simple concept to create variation within your vocabulary of movement. It works with every movement that has multiple parts. In between two parts of the same move there is some free “space” where we can insert something new.
Let’s take any regular two step movement as an example. It consists of two steps. By filling in the blank we would add an additional movement between step 1 and step 2 and therefore create a more advanced version of the original movement.
If you apply this idea to some of your moves, you will see it opens up a lot of possibilities for advancing your stuff.