On Mac, pressing the Option key plus another key can give you certain accents. To find out
which keys correspond to which accents, you need to open the utility that comes with Mac
call KeyCaps or Keyboard Viewer.
You must enable it under Apple > System Preferences > International > Input Menu > Keyboard Viewer. Then, you will see a flag icon next to the speaker on the top menu bar (top-right). Click that, then Show Keyboard Viewer.
Once KeyCaps or the Keyboard Viewer is open, hold down the Option key. This will give you a guide to which key combinations make the accents.
Examples:
To enter in an Spanish "ñ":
1.On the keyboard, press Option + n.
2.Then, hit "n" to tell the program which letter to put the accent over.
To put in a French "ç":
1. Hit Option + c.
For other accents, make sure to consult KeyCaps or the Keyboard Viewer.