Am I right in thinking that when I create an (unsigned) transaction from a watching-only wallet, Armory doesn't keep track of the fact that the relevant outputs were used by that transaction?

And that therefore, if I want to create two (or more) transactions from a watching-only wallet, such that both are spendable without conflicting with each other, then it's my responsibility to use coin control to ensure they spend from different addresses?

Thanks

roy