The Hand Bone production process will be a bit more cumbersome.
The Tutorial above can help you create your own character.
For the Hand Bone production process, the process would be the same, I would suggest you launch a bone hand character to the graphic editor, and change the image in the layers ,but there's some rules you need to follow, like the finger bone should be repositioning.
You can download the white paper on the official website, the hand bone create article is in chapter 5, this file can be obtained from the reallusion website by following the steps below
Member account > Software Registration > Cartoon Animator Pipeline > Download > Whitepaper