#3 Do you have to pull the outer glass front out to allow steam etc from the hob to be extracted, I cannot find anything in the instruction manual or on your website to advise me.
The outer glass does not need to be opened for the appliance to work.
On some appliances, the glass front can be adjusted to an intermediate position. The intermediate position can be used for eliminating particularly strong cooking smells and large amounts of steam. Take hold of the glass front in the centre and open it carefully.