Multi-branch Splits in automations. How to activate?

We would like to use the multi-branch splits, but we already are on a business plan.
Do we really have to upgrade to a custom enterprise plan to get multi branch splits in automations?

We are currently expanding into 12+ languages and currently the localization of automations is real pain in the ass, the multi-branch splits would at least allow us, to create one split for all languages and not having to set up cascades from hell.

Any thoughts on this or other best practive approaches for managing a lot of languages without too much pain?

Cheers
Jan