> Adding a Filter
> To add a filter to a clip (or clips), follow these steps:

> 1. | Select the clip that you want to add the filter to.

> 2. | Select the Video or Audio properties pane, as appropriate.

> 3. | Click on the Video or Audio Filters plus (+) icon to display the filter list (Figure 55).

> Figure 55. Adding a Filter to a Clip

> 4. | Scroll through the list of filters, opening and closing filter groups as appropriate. Or, you may search for a filter by entering a filter name into the Search box and pressing the Enter key.

> 5. | Click Add to add it to the filter list for the selected clip.

> Note: If a manufacturer's Audio Unit plug-in does not work in a sandboxed environment, it will not work in the Mac App Store version of ScreenFlow.