Sorry for the late response. I am kinda busy with my day job. Currently, if you want to add your own assets to the generator, you have to send them to me and I will add them for everyone to use. An alternative is to add your assets and make your modifications after the export of the base character. I am not sure what you mean by ‘using the animation only’. You can use all assets and animations under the license stated in the software. Have a great day!