Knobs: Absolut to Relative Conversion

I have some knobs on my controller that I can’t change from absolute to relative on the hardware site.

So – using CSS – I would like to map them from absolute to “relative”, so I can use the respective Ableton controls in a “relative fashion”. (+1/-1) if I turn the knobs a little.

Is there a way of doing it?

I tried:

A) Controller Template – Mapping: Absolute 0-127 -> Script Mapping Relative L0, R127, 128 streps –> Not working
B) Controller Template – Mapping: Relative L0, R127, 128 streps-> Script Mapping Default –> Not working
C) Controller Template – Mapping: Relative L0, R127, 128 streps -> Script Mapping Relative L0, R127, 128 streps –> Not working

Any support is highly appreciated!