When a document containing bibliographies is opened, created or edited with Texifier, it auto-senses the precise bibliography compilation needs of the document automatically and runs an appropriate tool.
In the live typesetter, you needn’t do anything special. Texifier will detect any changes to the bibliography database or the list of citations currently used in the LaTeX source and automatically update the References’ section in the PDF.
You may customise the system to your non-standard needs as you wish.
On iOS, different bibliography engines may be set for the current document as required.