Is it not possible to use the data of for example the m/s and use it on a beaufort dial, wdisplay used to work this way, that way you have the ‘detail’ of the m/s and the units of bft ?
The display can do this at the moment - just select the apporpriate wind speed unit, which the dial will display, and the Beaufort indication will be below it. All that won’t happen is that the dial won’t be calibrated in Beauforts but then you wouldn’t want that anyway as it would be rather confusing!