There are a couple of functions that can apply common settings to all axes in open, numbered figures (i.e., figures that have "Figure 1/2/3..." at the start of their name).
Save the file. To apply, open all the figures you want to adjust, in the same instance of MATLAB. Then run the function by typing at the command prompt:
>>fig_numberedfigures_axesoptions
All the axes in the open figures will be set to the new range.