Can the Inventory Hopper be configured to stop transferring items when a specific quantity is reached in the connected Storage & Crafting Terminal? For example, I'd like to prevent overproduction of Dried Kelp Blocks in my automated Kelp farm.

If it doesn't exist, I'd like to suggest a feature for the Inventory Hopper that allows setting a desired stock level. When the connected Storage & Crafting Terminal reaches this quantity for a specified item, the hopper would cease pushing or pulling.

Use the level emitter, it emits a redstone signal based on the item count in the system.
The Inventory hopper turns off if it receives a redstone signal.