Just before you are ready to remove the dough from the fridge, make the filling by placing the figs, honey, cinnamon, and salt in a food processor. Process until the mixture forms a thick, sticky paste. Set aside.
Butter a 9x13-inch rectangular baking pan. Set aside.
Remove the chilled dough from the fridge. Flour a clean work surface and carefully dump the dough out. Roll out dough into a large rectangle until the dough is about ¼ inch thick and measures approximately 16” x 12”. Spread the softened butter evenly over the dough using a small offset spatula, getting as close to the edges as possible. Dollop the fig honey mixture evenly over the dough and spread into an even layer using the offset spatula. Lastly, scatter the crushed toasted walnuts evenly over the dough. You likely will not need all the walnuts to sufficiently cover the dough. Save them to sprinkle on your yogurt or ice cream.
Roll the dough into a cylinder, beginning from the long end, pinching to seal the end to the cylinder once you've reached the end. Using a sharp knife, cut ½ inch off each end. You may discard these ends or squeeze them into the pan to bake with the rest of the rolls. Cut the dough in half in the middle then cut each half in half, repeating once more for each piece until you have 8 evenly sized rolls. Carefully place the rolls in the prepared pan in a 2x4 pattern. Loosely cover with plastic wrap and allow to rise 40-50 minutes or until doubled in size, in a warm spot (no warmer than 80°F) in your kitchen. Placing the rolls next to a warm stove or in a cold oven with the light on works really well.
Preheat the oven to 350ºF (177ºC).