Let’s look at the example. Hopefully it will make more sense.
- You have 20 switches around the house. They all just turn things on/off. You would need just 1 template for it: Switch Template. All 20 devices will inherit this template. All of these switches will appear as separate devices. They will have the UI you created in the template
- You have 3 temperature sensors. You would need second template: Temp Sensor template. All of your 3 sensor devices will inherit this template. All of these sensors will appear in the app as separate devices. They will have the UI you created in the template
As Volodymyr said, at this moment we don’t yet have Projects. Once we add it, you will be able to create a dashboard, where you will be able to add 20 buttons for switches and 3 charts for sensors on the same page (as in Blynk 1.0)