Using Timeline Editor to Animate Hands
Go to the Hands page and switch to the Modify tab . Next, single click the Timeline button.
Drag the play bar indicator to the target frame.
Double click on the Right Hand track in the timeline. It inserts a new gesture clip. Now right click to bring up Gesture Library.
You can select different hand gestures in the Gesture library.
You can mirror hand adjustments to copy one hand gesture to another by clicking the Left to Right or Right to Left button in the Gesture Copy field.
If you like to keep the result for later use, click the Add button to add the prop to the Custom tab.
See Animation Timeline Editing for more details on timeline operations.