OK. Got some reading done on
Force (Sith) Alchemy.
What you would need to have to be able to do it:
Force Sensitivity Feat (Jedi class has it, or buy as a Feat - but if you later multiclass into Jedi, you have to already have the Feat to make it possible...)
Force Use Skill (Which is fully separate from Force Sensitivity, but if you only has the skill, it is like a meditation skill, does not give you any force powers, but you can use the skill for "tricks" - just usually harder and longer, maybe spending a Force point...)
Dark Force User (Need to be both sensitive and skilled, and having at least half of wisdom of Dark Points.)
Then access to the Alchemy talent/feat, depending on if she has the Jedi class, or just went for the kill... Of course to be able to take this, you would need the approval of the DM, and also at least a little in-game quest to learn the BASIC of Force Alchemy.
Basically you can add the Alchemy as a help to any other process you are able to do, be it medical, technological, or crafting "Creation" (or recreation, grafting, changing, etc.)
Any kind of changes need also a lot of extra component, material, however you want to call it, making it cost around 10k credit per use - but it usually includes the material and equipment cost for the main process too, which are consumed - forever corrupted by the dark side. Some items or equipment could be reused for the same or similar processes, but more frequently than not, it is one use...
If you can't do a similar process on your own skill on your own power, then you need an alchemy "power" to do it for the better word. But you can learn a number of them, depending on how much other force powers you got.
As a Force Sensitive, it gives you a feeling for one.
As a Force User, you have 1+WisMod powers, and you can have those sacrificed/exchanged for just as many Alchemy "powers".
As an Alchemist, you also get 1+IntMod alchemy powers.
And as usual, you can spend extra feats to get more (3 smaller or 1 bigger Alchemy "power" / manipulation - which is the minimum you will have if you are able to take it).
What is the worst of it, you sometimes have to use up newly generated Dark Force points whenever it is needed for the process. So, you can't just spend the ones you have, you need to do something bad to get one for that ... as part of the process.