Users may build a list of favorite citation styles in RefWorks, or in RefWorks Citation Manager (RCM) for Word and Google Docs, simply by selecting the star icon next to a style's name. These stars are found in front of the name of a citation style in all styles lists.

In RefWorks, in Create Bibliography or in Quick cite

Choosing citation style in Create Bibliography

Choosing citation style in Quick Cite

Once clicked, the the star turns yellow

and adds the style to a list of favorites

In RCM for Word and Google Docs in Changing citation style or selecting citation style

Changing citation style in RCM for Word

Clicking on a yellow star next to citation style will deselect it and remove it from favorites.