If you want to contain Rogue AP discovered by IAP using RAPIDS from Airwave, you need to enable containment option in RAPIDS > Setup page.
once we enable this option, you will see containment option in drop down list in Rapids>Rules page.
Create a containment rule, for example if you want to contain a rogue device broadcasting your valid SSID, create below rule
In SSID box, provide your valid SSID. once you add, this rule, Airwave will contain rouge AP which is broadcasting your valid SSID.
We could manually contain rogue aswell from Rouge RAPIDS>Details in Airwave.
Click on any rogue device in Airwave , it will take us to detial page, under this we have RAPIDS Classification Override: option, select containment option from drop down list and click apply.