Is there a service for working with Viber?

Question

Messengers

I have several working groups in the viber messenger, purely for work - but there are 22 groups. Created for a good purpose - to inform about important events.
Essence of the question: is there a service for convenient distribution of messages by groups: send to all at once, selectively, etc.
You can, of course, hand-to-hand, but not very convenient ...