Question about moving Cue List to different playbacks.

I noticed some behavior on my iPC I need clarification on please.

I recorded a few looks on playbacks without any thought on how I would like them ordered b/c I knew I could go back and rearrange my playbacks in the preferred order. I moved a list from PB 10 to PB 2, and then proceeded to delete it from PB 10 (since it did not actually move it, but copy it). What I noticed is that whenever I tried to edit the cue that I had moved, I received an alert stating something to the effect of "... this is active in another playback and could create strange looks on stage..." I did not receive this alert prior to moving the list. I could just edit the cue with no warnings. I also noticed that I could not change the values in the cue editor by selecting them w/ the cursor and then pressing 'set' to enter a new value; I could use the parameter wheels, however to change values. Am I missing something, or is this some sort of bug?
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