You can easily save current settings to the current template.
To use the current property settings, deselect all objects, then click the Object Properties icon.
To use the settings of a favorite style, click the button with no objects selected.
Open the Object Properties docker.
Make any further adjustments as required.
Click Save. Current settings are saved to the template as the new defaults.
Tip: To save more than one set of property settings to the template, save them as styles.