Before asking in forums, I was trying to fix it myself but because I was clicking on the grey box on top of those clips, to highlight them, when right clicking, nothing would show up to make any change. Instead I should have highlighted each clip on its own and then right click and lift from storyline!
• No need to select individual clips and lift from storyline, delete storyline, etc. Just select the grey box and use the keyboard shortcut (Shift+Cmd+G) or the menu item ‘Break Apart Clip Items’ from the Clip menu in the menubar at the top. The option doesn’t show up in the right-click contextual menu, which is unfortunate, because it absolutely ought to.
I detached the audio from the video clips because I wanted to add a few effects and in a few video tutorials they say to detach and then compound the audio so the changes will be applied to the full audio.
I never do compound clips usually for the type of videos I make but I was done with the editing and so I did a compound clip for the effects.
• There are better ways to do this, those tutorials may be out of date. Keep your audio attached, make sure things are assigned the correct roles, and at the end of the edit, make a compound of the entire edit. Then you can apply your effects to specific roles or the whole mix (or both)
Once you do apply your effects, is it possible to reattach the audio to the video clips?
• Unfortunately, no. This is why I avoid doing so whenever possible. It may be helpful to review the surprisingly good FCP manual, or tutorials from reputable sources. Ripple Training is a favorite, there are a few others.
Good luck!