Hi Tony!
Default views can be set through the layout templates. Here's how to do it:
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- Go to Setup >> Interface >> Layout Templates
- Open the layout template that you want to adjust
- Click on the dropdown for "Customize what users see" >> Select "Lists"

- On the right, click on the dropdown for "Select a list to customize" >> Select "Tasks"

- Find the View that needs to be the default and click "Set as default"

- Repeat these steps on each layout template that needs to be updated.
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So yes, it's definitely possible, just might be a little time consuming if you have a handful of layout templates.