Create a custom Autoformat Style LibreCalc?

How can I create a custom style template that is available in the Autoformat Style menu?

Librecalc version 6

Thanks,
Wayne

Do you mean you want to add a new style to the Styles and Formats sidebar available when you press F11?

No not the F11 sidebar. From the top menu if you choose Format-> AutoFormat Styles…
You’ll get to a screen that looks like this:

Is there a way to create and maintain a new style of my system… or change the existing styles?

Thanks,
Wayne