Viewing and adjusting a filter’s parameters, Controls in the filters tab of the viewer, Viewing and adjusting a filter’s – Apple Final Cut Pro 5 User Manual
Page 979: Parameters, P. 192)

192
Part II
Project Interchange
Viewing and Adjusting a Filter’s Parameters
Once you apply one or more filters to a clip, you must display filter parameters before
you can adjust them.
Note: If you want to show or modify parameters for a filter applied to a clip in your
sequence, make sure that you open the sequence clip in the Viewer, rather than
opening the master clip from the Browser.
To view the filters applied to a clip, do one of the following:
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Open a clip into the Viewer, then click the Filters tab.
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If a sequence clip is already open in the Viewer, click the Filters tab.
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In the video track of a clip in the Timeline, double-click the filter bar.
The clip is opened into the Viewer with the Filters tab open.
Note: If a sequence clip is already open in the Viewer with the Filters tab open and you
open another sequence clip, the new clip appears with the Filters tab open as well.
To reveal parameters for a filter:
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In the Filters tab, click the disclosure triangle next to the parameter.
Controls in the Filters Tab of the Viewer
There are various controls you can use to manipulate filters in Final Cut Pro. While
each filter has its own individual parameters and controls, all filters have some controls
in common.
Filter category bar
Timecode field
Name bar for the
Find Edges filter
Parameter controls
for the Stop Motion
Blur filter
Enable/Disable checkbox
Disclosure triangle
Keyframe buttons
Keyframe graph area
Reset button
Show/Hide keyframes
pop-up menu