While reading the Table 2-10: Witch, I noticed that at 10th level, and again at 18th level, it says "hex, major hex" (grand hex for 18th). Does this mean you get to select 2 hexes at these levels? Also, it states for Major Hex, "Starting at 10th level...a witch can choose one of the following major hexes whenever she could select a new hex." (Grand Hex the same for 18th level and grand hexes.) So does this mean that if you can choose 2 hexes at 10th and 18th levels, can you pick 2 major or 2 grand hexes, respectively?
You still get only one Hex, but you have an expanded list to choose from.