Not Chaining

Gatling (Open-Source)
1

I am creating a long scenario (it was 300K!) I see that the recorder should auto chain:

In case of long scenarios (more than 50 requests), the recorder will split them in chains:

[...]

val chain_1 = exec(...)...
val chain_2 = exec(...)...

val scn = scenario("My Scenario")
            .exec(chain_1)
            .exec(chain_2)

[...]





However, the recorder is not auto chaining, is there something I need to configure?