Ability to set Visualization preferences & Format preferences in Power BI Desktop

I think having the ability to change the default behaviors as Power BI Desktop Visualizations would be great.

As an example - with a slicer, rather than Single Selection turned on and Select All turned off, these are often settings that i nearly always go in and change.

Another example is perhaps instead of performing a SUM by default with numerical data, i would be able to change ythe default behavior to AVG or something similar, and have these preferences hold true next time I open up Power BI Desktop.

Having the ability to change the default behaviors of visualizations and save these would be awesome... each time i would then go into Power BI Desktop.

Thanks!