EDIT: because there is not a lot of information about how to create a flipper font, below is a step-to-step guide for FontLab. I hope people with no background knowledge, and with the same questions as me can find some answers. My original message and questions about a flipper font are shown below.

A flipper font is a font that has multiple variations of every character. These variations are alternately called upon to bring more variations inside the font. Example:

this is the default behaviour, on the keyboard the ‘n’ is ticked, and the same 'n' is used again and again.

The context of this question is one of my experiments
to create a good legible font (NOT such a comic font) that is very readable on little formats.
To simulate a sense of handwriting, it has to be a flipper font.
I want to look if it is possible to combine, and how far it is possible to go with.

I thought I was smart enough to figure out how it had to be done in FontLab
but thanks to my limited knowledge of the English language, I'm not.
Also I have only a limited knowledge of FontLab, my previous fonts were without programming Python.
(I actually know FontLab only one year now, and on school the specialization Typography is in its childhood,
not a lot of people know FontLab in detail)