....you just got told that you CAN NOT...the 'obvious' way that you seem to really really not want to do is: 1 ship per wreck.
Though I have to wonder what kind of situation you are in where you apparently very strongly feel the need to salvage a large amount of wrecks in a short amount of time...or more appropriatly salvage a (or some) wreck very VERY quickly
As it is, your options are
a)one ship per wreck and queueueueu (gods I love that word...queueueu) up multiple wrecks
b)one ship per wreck and wait till its done then go and assign it to the next one
I always picture the attempt involving men and machines, so the logic of more then one 'crew' getting in each others way and violating OSHA regulations made sense to me
As to stopping an operation, you know what? your question pisses me off....not because of you, because of me. I'm annoyed at myself. For in the last game I played many months ago, I interrupted a salvage operation due to eating a missile or 50. And for the life of me I CAN NOT REMEMBER the answer. If I get around to it today I have some wrecks I need to salvage in my current game, so I'll check here and see if anybody answers before I try interrupting halfway through
And as a side note (or two), if you put cargo holds on your salvager, remember to check it obsolete so the civvies don't start building it. Also...er..I totally forgot what else I was going to say. Like, *poof* gone...Oh well, good luck
ps. Any antagonist vibes you get from this I totally blame on having to talk to my ex today and suffer through her evilshipness's..er..evil..