Move multiple users into second group and send message to all users.

Hey Whats up :D ..

Please i need your help ..
Q1 : i want to know how do i can Integration 2 groups together ?

For an Example : users in [Test1] Group .. add all of them to [TEST 2] .. with one click .. is that impossible ?

Q2 : How do i can send a notification to all users in the server ? in chat or poke message ?

Hope you guys have an awesome day .. bye bye .. :)

Move multiple users into second group and send message to all users.