Frequent users of Final Cut Pro know how valuable compound clips are.
The very essence of a Compound Clip's nature - to combine all selected clips into one entity - can be a pain to understand.
This is especially so, when you are creating a compound clip, as a template, that you intend to use over and over in future projects that also contain Title clips where text needs to be changed.
When you change the words in the title they change in all other places you have used the template.
You will see how to avoid those unwanted changes.