Ok, I actually just worked it out but I will write it here so it’s logged for future use for anyone else.
So you have your clips, highlight them all then go to. Sequence > Nest Items.
Your clips become one whole clip, now I don’t know fully its parameters but it almost functions like a regular clip, but more like a ghost. You can change its opaqueness of it quickly which is nice.
To use its Motion or Filters tab you can’t double click on it to open in the Viewer, instead you have to press Match Frame button (F) then it shows up in Viewer. Then for instance the problem I was having above, I key frame at start and end of mark in/out of clip from 0 to 100, then to see it, you have to insert/overwrite it onto the timeline as it isn’t realtime like a regular clip, instead you have to re-create a new replica of it with the new things you have done to it.
Hope that makes sense.
Two 24inch HD Hyundai W240D LCD monitors.
Mac Pro:
2 x 2.8Ghz Quad-Core Intel Xeon
12 GB 800 MHz DDR2 FB-DIMM
NVIDIA GeForce 8800 GT 512MB
Final Cut Studio 2
NAD Amplifier with Bower&Wilkins monitor speakers.