This should get you started.
Added party just in case you want/need that as well.
Lua Code:
self:SpawnHeader('party', nil, 'solo,party',
'showParty', true,
'showPlayer', false,
'showRaid', false,
'yOffset', -3,
'oUF-initialConfigFunction', [[ self:SetHeight(20) self:SetWidth(200) ]]
):SetPoint('TOPLEFT', 25, -50)
self:SpawnHeader('raid', nil, 'raid',
'showRaid', true,
'showSolo', false,
'showPlayer', true,
'showParty', false,
'yOffset', -3,
'groupFilter', '1,2,3,4,5,6,7,8',
'groupBy', 'ASSIGNEDROLE',
'groupingOrder', 'MAINTANK, MAINASSIST, TANK, HEALER, DAMAGER, NONE',
'maxColumns', 2,
'unitsPerColumn', 40,
'columnSpacing', 5,
'point', 'TOP',
'startingIndex',1,
'columnAnchorPoint', 'LEFT',
'oUF-initialConfigFunction', [[ self:SetHeight(20) self:SetWidth(200) ]]
):SetPoint('TOPLEFT', nil, 25, -150)