Yn ystod y cyfnod ymgynghori, cynhaliwyd nifer o grwpiau ffocws thematig gyda rhanddeiliaid dethol. Roeddent oll yn ymdrin ag adran benodol o’r ymgynghoriad technegol a rhoddwyd gwahoddiad i randdeiliaid â diddordeb penodol yn y meysydd hyn i fod yn bresennol.
During the consultation period a number of themed focus groups were also held with selected stakeholders.  They each covered a particular section of the technical consultation and stakeholders with a particular interest in these areas were invited to attend.