Adobe Analytics Connector - Filter dimension by specific values

Hi, 
I'm using adobe analytics 2.0 connector and trying to filter on a dimension in the 'added items' step. 
The Dimension column is "variables/evar31.1" which is "Marketing Channel 1D MR" &
"variables/campaign" which is "Tracking Code [campaign]"

I want to limit the "Marketing Channel 1D MR" to include only values "SocialMedia" & "SocialmediaOwned". Otherwise, too much data is included and affects loads time. 

This is current code snippet:

= Cube.Transform(vrs...,
        {
            {Cube.ApplyParameter, "DateRange", {#date(2022, 10, 25), #date(2022, 10, 25)}},
            {Cube.AddAndExpandDimensionColumn, "DateGranularity", {"variables/daterangeday"}, {"Date Granularity.Level 3: Day"}},
            {Cube.AddAndExpandDimensionColumn, "variables/evar31.1", {"variables/evar31.1"}, {"Marketing Channel 1D MR"}},
            {Cube.AddAndExpandDimensionColumn, "variables/campaign", {"variables/campaign"}, {"Tracking Code [campaign]"}},
            {Cube.AddMeasureColumn, "Orders [purchase]", "metrics/orders"},
            {Cube.AddMeasureColumn, "Revenue [purchase]", "metrics/revenue"},
            {Cube.AddMeasureColumn, "Units [purchase]", "metrics/units"},
            {Cube.AddMeasureColumn, "Visits", "metrics/visits"},
            {Cube.ApplyParameter, "Segment", {{}}}
        })

I'd guess I need to add another applyParameter such as below but am not able to get to work:
{Cube.ApplyParameter, "Marketing Channel 1D MR", {{}}},

I've checked below and can't figure out still/not relevant, in case somehow can help:
https://community.powerbi.com/t5/Desktop/Adobe-Analytics-Connector-Dimension-Filters/m-p/1226737#M544608
https://community.powerbi.com/t5/Desktop/Adobe-Analytics-Connector-Limiting-Dimensions/m-p/676602#M325700
https://community.powerbi.com/t5/Desktop/Adobe-Analytics-Connector-Dimension-Filters/m-p/1226737#M544608

Thanks