In PawEditor, keyframes work with an effect or color effect. In the library of effects and color effects, the effect with a clock icon on the right top indicates that the effect can work with keyframes.
Go to the keyframe editing panel
Add an effect or color effect in which keyframes can be edited to a clip, click "Edit the effect" in the timeline to go to the keyframe editing panel. You can zoom in or out the panel.
Click the "Add Keyframes" button beside a parameter to add keyframes editing. You can then edit the keyframes for the specific parameter.
On the keyframe editing panel, move the cursor to the frame that you want to add a keyframe and click "+" to add a keyframe. You can also click the "Delete" icon to delete the keyframe or click the arrow icons to jump to the previous or next keyframe.
After adding two keyframes, you can select the first keyframe(the selected keyframe is highlighted in blue), configure the parameter for this keyframe in the editing panel of the effect. Then select the second keyframe and set a different parameter. PawEditor will apply the animation or change to the video automatically.