AttributeSplitter can do that for you. It will create a list, but you can copy the list elements in a AttributeCreator (2015) or AttributeManager (2016) into the needed attributes.

This sort of does what i want but pulling each list element as an attribute i cannot specify where each goes so list{0} in 1 row is different to list{0} in the next

I would first use the AttributeSplitter splitting at the comma, explode that list out using the listexploder and then split the resulting attribute by the -

Then use an attributecreator using the second value of the second list as the attributename, with the first value of the second list as the attributevalue

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These attributenames then need to be exposed and then aggregate the output back together based on the original line value (or other unique attribute)