Occasional Visitor

I'm trying to create an automation for Power BI so that it is able to refresh and publish a dataset to its online work space. 

I'm doing this through creating a PowerShell script that will open Power BI Desk, then click refresh, then click publish. 

I'm having trouble getting the mouse clicks down. 

I'd like a suggestion for a line I can add to my script so that I can place a left mouse click at location x by y. 

If I can figure out how to place one mouse click at coordinates I'll be able to work out the rest. 

 

Thank you for your help!