Yesterday I tried moving the MB icon and it got lost. I closed MC Menu Mender and reopened it and the MB icon reappeared. You need to scroll the VMC menu in MC Mender and then open the entry point and drag the MB icon to the green plus on the row you want it to appear. There is a limit to the number of icons you are allowed to have on a row. If that happens, you won't be able to add another icon.
I don't know if this is your problem.
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