Instead of using your entire Measurement Chart for ERB and e-commerce - you might want to have some Measurement tags you can use on your Measurement Chart.
In Admin-Sizes you can set up your Tags - just click on "Add measurement Tag"
This will create a new row in your list of Tags.
Give your Tag an ID - if needed and a unique name.
Save your Tag and you are good to go.
Read here how to use these tags on your Measurement chart.