To start, Load the file from File/Motion File Import, or drag and drop a set of files from the Asset Browser into the Viewer.
Note: It's possible to load multiple files. Each one can be in a different take and share the same skeleton.
After import, you should be able to preview each of the motions. Note that at this point, if you want to convert the input into a different format (for example, from AMC to BVH), you can do so without defining anything else. For example,
Otherwise, if you would like to retarget the input motion to a new skeleton, we need to define Motion Builder characters for both the input and the output.
Now, we can link the input motion to the new skeleton.
NOTE: You can lock a window, so you don't lose it when you click elsewhere
NOTE: To delete something from the scene: Right click, select branches. Then delete.