To copy and paste keyframes between projects in Spine, you cannot directly copy and paste between the projects as you would within the same project. However, you can achieve this by using the "Import Project" feature. Here's how you can do it:
- Ensure that the bone names in both projects match for the parts you wish to copy keyframes between.
- Open the project you want to import the keyframes into.
- Go to the main menu and select "Import Project."
- Navigate to and select the project file from which you want to import keyframes.
- Choose to import the specific animation that contains the keyframes you wish to copy.
This process imports the entire animation, so you may need to do some cleanup if you only want to transfer keyframes for specific bones. Remember, this method works best when the skeletons in both projects have matching bone names for the parts you're interested in transferring keyframes between.