It is a mechanical pump so the only way is to throw the starter motor over in short bursts, not letting it fire, I do this a few times after an oil change, not sure it helps much in reality but as there is little choice it is the best I've come up with.
I suppose you could unplug all the coil packs?
For a non engineering type person (me) why would you do this?
The engine turning over results in the same parts moving with the same wear???...or am I missing something.