The Best Workaround Solution
What I am going to suggest is applicable in general when using Divi and not specific to our plugin, but the suggestion is ideally suited for using the Divi Carousel Maker.
1. Open Two Tabs Of The Same Page
I suggest having two tabs open in your browser for the same exact page. In most browsers you can right-click on the tab and select “duplicate” and another tab will appear next to it.
2. Work In One Tab, Preview In The Other
Use the first tab for working inside the Visual Builder. Use the second tab outside the builder on the frontend.
3. Save Changes In One, Refresh In The Other
As you work inside the Visual Builder, you can click the green “save” button any time or get into the habit of using keyboard shortcuts like Control/Command + S. Any time you adjust a setting, you can save your work.
Then switch to the second tab and refresh the page. Again, you can use a keyboard shortcut Control/Command + R to quickly refresh the page. Now you can see your changes take effect within seconds after making them in the other tab!