How to remove a source of a Adder while playing?

[Lucas Alberto]

Hi People,

i'm trying to remove dinamically a audio input that is linked to a
Adder element. Does someone know how to remove a source element and
let the Adder continue mixing the other sources?

I've googled a lot to find the answer but I only found references to
removing a branch of a "Tee". I don't know how to adapt the steps used
in the "Tee case" because the Adder element is the inverse of a Tee.

Thanks in advance.
Lucas Alberto, from Brazil.