Good question !
I have been looking around in MW's SDK for the better part of an hour, but the only thing I can find are the settings about 'Inset' (in lib/mwave_sdk/com/motivewave/platform/sdk/study/Plot.class more precisely)
I am afraid that the settings / options you refer to are hidden deeper in MW's code (same as the next tab 'toolbar' by the way) and that we cannot alter those.
Curious to find out if anyone proves us wrong though ...