I have a new dishwasher and the top shelf has several movable brackets on the side. I just don't know what they are designed to do or hold. I'm guessing they are somehow supposed to hold something in place. I just don't see how. Can anyone help. My dishwasher is a Zanussi ZDT21001FA The brackets are on booth left and right sides.
They are for holding wine glasses upside down by the stem, safely, so they don't fall over and break during the washing cycle.
They have a few functions (depending on design):
They're an extra place to put cups (depending on what height setting the top shelf is on).
They support the stems of wine glasses
They can also be used for longer utensils such as knives (not that I'd recommend it) or spatulas.
(To clarify, "cup" here means a cup/tea-cup, not a large mug example)