The Cell Workbench
You can add upgrade cards and configure "partitions" to filter what the cell will store.
Items and fluids can be dragged into the slots from JEI/REI even if you don't actually have any of that item.
Right-click with a fluid container (like a bucket or fluid tank) to set that fluid as a filter instead of the bucket or tank item.
The cell workbench has a few buttons on the top-left:
- You can partition a cell based on its existing contents
- You can clear the cell's partitioning
- The workbench can be set to retain the partition settings when the cell is removed, allowing you to copy settings between cells.