Wanting to have "et al" citations show just one author not two

Hello
In my in line references I want any research with more than two authors to show just one and “et al”. I have gone into Endnote > Edit > Output Styles > Open Style Manager and edited “Annotated” with these changes. They are however not saving. Any tips?

Also, once I do save them. what do I need to do to have them apply to my Word Document?

Thanks.

Thank you so much!

I really appreciate it.

Jason