You can create different Rate Plans in Switch.cm according to your reasons, for example, a Rate Plan for each OTA, or a Rate Plan for a triple occupancy configuration of your double room, etc.
To edit your Rate Plans, click on the Gears Icon then Room Setup under Basic Settings.
We recommend that you keep your Rates as simple as possible, also inside the OTA's extranets. And in case you want to modify your existing rate plans/rooms in an OTA you have to disconnect and reconnect the OTA into switch. While connecting Switch.cm shows the existing rates and rooms you've created before in the OTA extranet, so changing that will require you to exclude and add again the OTA connection inside Switch.cm Dashboard.