How to execute different scenarios at the same simulation sequentially?

Gatling (Open-Source)
1

I have to execute the same test during 2H, but in each interval time (10min), I have to change user rate in each interval so inject different rate user/second in each scenario.

I have tested with:
setUp(
scenario1.inject(atOnceUsers(1)).scenario2.inject(2)
).protocols(httpProtocolBuilder)

but according to results, only executes the last scenario configuration, in example case, for 2 users.

Someone could help me?