Release each of the dividers by pinching the white tabs on top of the Mix Module.
Set each divider in a safe place and out of your way.
From the front of the MiX Module, locate the locking buttons, little square buttons on either side of the MiX Module. When depressed in, the top of the MiX Module will be able to slide forward along its rails.
Slide forward and lift the top of the module up (as pictured below).
Using the white knobs to guide you, reinsert the dividers into the row of holes matching your desired slot width.
When complete, lower the module top back down and slide it back along the rail until it locks back into place.
NOTE: When reinserting the dividers for either 1.25” or 1.50” wide slots, the dividers get turned 180 degrees so that they will fit into the pattern.
This process is identical for both 1.25” and 1.50” slot widths.