David,
Don & Andy explained me in detail these issues.
So IMO, this kind of issues are technically seen as coding limitations rather than a bug.
Concerning the "anorthodox" treatment of the scenario editor (irregular procedures in the scenario designing), I guess this is the price that someone has to pay when he travels through uncharted (and "dangerous") waters!
Bottom line, respect the normal procedures and you won't have any problem at all.
Everything is OK!
cheers,
Pyros