Moving "patches" in Matlab figure editor

I inherited a figure (as a .fig-file) and want to change the layout of the legend. I would like to stretch the legend, from taking up half of the right side of the plot to taking up all of the right side of the plot.

I was initially hoping that the "Align dist开发者_如何学编程ribution" tool could help with this, but as it turns out, the "patches" (i.e., the color samples) refuse to move! I cannot move them with "Align distribution", or drag and drop them by hand. However, there is no problem moving the text corresponding to the patches.

Is there a way to move the color patches? Is there a way to automate the spreading out of the legend?