User Activity

I'm new to selling on e-bay, although I' been purchasing for 12 years plus.I'd like to refresh my listing of items for sale.Is it ok to end my listings on half of all my items and to replace them with new stock, as long as there is no interest shown ...
I would like to know how to update my Dispatch Timings on my screen from 1-2 days, to 4 days.I have worked out how to update indvidual listings but as I have nine pages of items for sale, this would take forever to update !Does anyone know how to upd...