View Cell
View Cells are used to filter the display of terminals. You partition them in a Cell Workbench.
For example, say you want a terminal to only display a selection of stone building materials. Partition the view cell to those materials and place it in a terminal, and only those items will be shown.
View cells are additive, if you have a view cell for oak planks and a view cell for cobblestone, putting both in will show both planks and cobblestone.