How to create a "Protected model" from a model containing S-Function?

I have a model, which has an S-Function. I would like to protect this model from code generation, by creating a "protected model". However, I saw here that its not possible to do so.

Is there a workaround for this?

Protected Models A protected model cannot use noninlined S-functions directly or indirectly.

Answer 1

[Guy Rouleau]

Support for non-inlined S-Functions inside protected referenced models have been added in R2021b.