Hi Marcelo,
We don't have any videos on this currently.
What you could do is schedule a daily recurrence and cancel each day it doesn't snow.
You could also create a "memorized list". You could have a button somewhere that you can press when it snows, it could run through your Customers and if they have a flag set (i.e. if they have opted for snow removal from you), it could create a work order for snow removal for each of them.
Hope this helps.
- Justin