The Perfect Tower II

The Perfect Tower II

Factory auto craft keep dust
Is there a way to tell the auto craft feature (not the fabricator) to keep at least 1 dust of each tier? It is nice that it knows how to auto convert lower tier dust to higher tier but then it uses up all the dust and will make the next craft stuck since it cannot convert up unless there is at least 1 dust in higher tier.
Ideally it should increase the amount of each dust by 1 when calculating the production chain