mitk.mxn.layout.three_up# mitk.mxn.layout.three_up(*, group=Group(name='main', select_all=True), editor_name='mxn', bare_id_stem='widget', start_index=0)# Three windows side by side: axial, sagittal, coronal. Return type: Split Parameters: group (str | Group) editor_name (str) bare_id_stem (str) start_index (int)