Copying attributes to a selected group

In Resolve 17, using a two button mouse (standard apple mouse) I can't figure out how to copy the attributes (i.e., borders on stills) from the first slide to all the others after selecting them. I watched a video but it kept referring to a 3 button mouse.
How can I accomplish this task with the menu or keyboard?
Thanks for the help.

Use the normal copy keystrokes for whichever computer you are using, then right-click menu, Paste Attributes.