Describe your enhancement

I was playing around in ATM10, and the lategame patterns really are a hassle with Refined Storage, due to how the stack size for each item in a Processing Pattern only goes up to the vanilla stack size for that item. The result is that my patterns are really verbose, as shown below.

Then, I was using JEI to copy this pattern into my Pattern Grid.

Notice the Enchanted Book stacking up to 4. That's obviously above the usual. After testing, this pattern does indeed work as expected.

Since it's already technically possible, could you add native support to adjust stack size for items like this? It would make patterns a lot easier to read and create.