create a max for live program that can link with external software.

Djoo's icon

Hello, I would like to be able to create a max for live program that can link with external software.
Here are some illustrated explanations (jpeg).
Link Facebook group max users, for more explications : https://www.facebook.com/photo/?fbid=1465951103935166&set=gm.2505614916244726&idorvanity=247243672081873

I would like to know how to proceed if possible.

Thank you for your attention

Jan M's icon

What do you mean by linking with other software? Time sync, data exchange, audio streams .... ?