Thanks, but I can't do it...
you can learn it!
Modbus TCP is nice but not very easy to use as you have to deal with "cryptic" IDs. Shelly devices are also support MQTT and HTTP(S). It may be more easy to get the required data by HTTP.
I know only the Gen1 devices but the Gen2 and Gen3 should work similar. All possible requests are well documented https://shelly-api-docs.shelly.cloud/
If you type in your browser http://<ip-address-of-your-shelly>/status you get a answer as a JSON file. This can be parsed very easy in UiFlow or Arduino to pick out the information you want. Once you have it in a variable you can display it, calculate with it or whatever you want.