Glad you've got it set up and working!
For the WS469, XPS2, XPS3 and XPS4 switches, select 'X10 Appliance Module.'
As posted in the Smartenit thread:
Got a new P2? Here's how to get started.
Once you have the P2 and PLM connected and plugged in you can set up your account in the app. Don't forget to open your Alexa app and, under the 'Skills' tab get and enable the Smartenit skill.
Now let's add your X10 devices. In the upper right corner of your app screen tap the green '+' button.
Tap 'Devices' then scroll down to 'Switches/Outlets' and tap it.
Scroll down to and select either 'X10 Appliance Modules' or 'X10 Dimmers' as appropriate. Anything that doesn't dim is an Appliance Module.
Then tap 'Add Now' and enter the name for the device (i.e. Porch Light) and enter the House and Unit code then tap 'Save'
Lather, Rinse, Repeat for each X10 device.
Now if you tap the menu bars in the upper left corner and select 'Devices' you'll see a list of your X10 devices and you can tap the circle to turn them on and off or or adjust brightness by turning the circle.
You'll now be able to see events as they occur.
If you've enabled the Smartenit skill in the Alexa app now would be a good time to tell Alexa to 'Discover Devices' after which you can control them by voice.
By pressing the '+' button you can select 'Automation Rules' and set up whatever schedules/events you like. It's pretty intuitive and very flexible.
Any questions, just holler.