Add 3 SG50X-48MP switches to an existing stack

[Translator]

Hi everyone, I have doubts about how to add 3 SG50X-48MP switches to a stack that is in production and that already has 4 switches. The master choice is set by default. 

What sequence should I follow to add these new switches? 

Would you have a problem when adding the new switches, such as the stack choosing a new master and losing the configuration?

Do I have to restart the stack to save all settings?

Thank you beforehand for the help, greetings 

[Kasun Bandara]

configurations will not erase. but devices will be rebooted.

check https://community.cisco.com/t5/switching/adding-sg350x-to-an-existing-stack/td-p/4067458

[Translator]

Hello

It is always recommended to create a stack to apply a priority to switches, usually from 15 to 1, where 15 is the switch that would function as master, the rest as slaves and listen.

Then with your query, check each switch's priorities, if everyone is by default I recommend you order it, always backup the config before applying change.

The stack will ask you to restart if necessary.

Greetings

[Translator]

Thank you very much, a greeting.