You cannot embed nor import fonts. If the font is installed on your system it will be available in Captivate. You have to be careful with system fonts. With non-responsive projects and static text (has no variables) you may have less problems because text is converted to images. However for dynamic text, which needs to be rendered on runtime (like the fields on a quiz score slide) the end-user will see the correct font only when it is installed on his system.