Hi @Anonymous ,
Yes. For this you will have to create two flows.
Flow 1:
Trigger: Manual button:
Action: Create a SharePoint Item
Action: Send email. 
Flow 2:
Trigger : When an item is created or modfied
Action : Send email
Note: you can remove the send email action from the first flow as it will be any ways covered in the second one. So when you create a item with the first flow, the second one will be triggered and you wil get email. Now you go to sharepoint and modify it and the second flow gets triggered and you get the email.
Hope this Helps!
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