smoore
Contributor
Actually if you look on page 80 of the pdf I linked it says that once in the macro or wide angle underwater mode you can set underwater white balance. So, it seems possible.
but it also seems convoluted. Would have been much easier if they had just put underwater WB under the normal WB menu like the other PENs have.
I assumed there was no underwater modes because I could not find them in the white balance settings but Chris is absolutely correct. One has to assign this mode to a function button to access it. This convoluted approach may be needed as the flash can be fired without raising it in the underwater mode. I think the same is true of the OMD-EM5. I have the EM5 Mk ii and I can access the underwater mode from the white balance menu.