AE2 storage cells support being put into Cell Workbenches for partitioning and adding upgrade cards:

• Fuzzy
• Inverter
• Equal Distribution
• Overflow Destruction

Only the Overflow Destruction card would really make sense for this mod's mana storage cell (not even partitioning). However, the mana storage cell does not support being put into a cell workbench, so I can't add overflow destruction upgrade.