1 When an item can be crafted by multiple recipes, and the recipes have different emc values, you can choose the highest, lowest, average or no emc
2 Whether to set an item to have no emc when there is a recipe that can exploit emc
3 You can configure emc for everything (including energy, fluids, gases, etc.), and it will automatically generate related emc

1. I don't want to touch ProjectE EMC generation and calculation because that could break down the line.
2. Already Possible: /projecte setemc 0 with said item in hand
3. While this is possible and I am supporting fluids and gases, but due to their nature of being in the thousands, (A bucket being 1000ml) it is a bit iffy.

lquid and gases can set emc with Bucket，not mb，and mapping with
fraction