Its simple enough to say the least but heres what you have to do:
#1: set mount point ex: ext sd/externalsd
#2: make sure unmount emmc is unchecked.
#3: then select save & reboot let your phone reboot and voila your all set!! L
I think this wins the award for the world's worst post ever. Why does every completely impenetrable and obscure post have to begin with "It's easy", and end with "You're all set" ? That is one of the mysteries of the world. Obviously, if someone is reading this thread, they cannot figure it out, so don't be a jerk and tell them it is easy, not explain it, and then tell them they are all set. When you clearly have not given nearly enough information for anyone to follow your instructions.
Let's start with point #1. set mount point. To what? How about giving people some background on what the mount points for each model used to be, and what they were changed to. For each model, for both internal memory and sd card, and for each version of android. If you can't do that, you have no business posting anything, let alone telling people it is easy. Because it isn't, and you can't do it either.
Now point #2. Make sure unmount emmc is checked. Could you please give some background on what emmc is, and why it should be unchecked?
Point 3. Presumably, most people know they should select save and reboot. Whether they are all set or not may depend on a lot of variables, like android version, phone model, and mount points (which you haven't explained).
And no, I didn't read the documentation, because...There isn't any!! Just a link to the developer's website in Polish, which shows his travel pictures to Budapest.
Arrgh.