Q: E-M5 how to disable arrows in manual focus with legacy lenses

Please accept my apologies if I have missed the information while searching this forum.

I am shooting a Voigtländer 25mm f:0.95 with my new E-M5 - obviously with manual focus.

The IQ is very impressive but I have a big problem with the arrows. I keep hitting the right arrow and thus the green square moves around.

I have disabled the functionality in AF - no problem - but is there a way to disable the arrows 100% in manual focus?

All input much appreciated.

Thanks in advance

Xpanded