CraftTweaker is a mod that allows certain aspects of specific mods to be edited through the use of scripts. Mystcraft includes CraftTweaker integration for the creation of custom Pages, but there are also other uses. CraftTweaker scripts are files with a ".zs" extension that are placed in the "scripts" folder of a Minecraft instance. The same file must also be present on a server if playing online. The scripts are only loaded during startup, so Minecraft must be restarted to see changes made to a script.
Bottling Machine (Immersive Engineering)
Immersive Engineering includes a Bottling Machine that can bottle liquids automatically so long as fluid is inputted to the machine. To add support for bottling Black Ink into Ink Vials, use this script:
import mods.immersiveengineering.BottlingMachine; BottlingMachine.addRecipe(<mystcraft:vial>, <minecraft:glass_bottle>, <liquid:myst.ink.black> * 250);
The "250" will yield four Ink Vials for every 1000mb of Black Ink (or four Ink Vials for every Black Ink Block). It may be changed to any positive integer for different yields.