The only real way to do this is to re-create your objects in the new game with the same names, then rename everything afterwards to suit.
The other option is to have a more "generic" name for stuff - so instead of "sword" have "weapon" - but again you'd still have to recreate the objects in another game... but at least you may get away with not renaming everything again afterwards.
Ultimately it comes down to C2 really lacking the feature to efficiently copy and paste event sheets between projects. It's a big improvement over CC's abilities to do the same thing, but hopefully in C3 there will be full support for this type of thing - as well as collaboration abilities. It's frustrating working on a project with multiple people, and only one person can work on it at a time.
~Sol