Our software AIMBullseye, AIMSniper, and AIMRecon can be used at will upon purchase of one or more licenses. The amount of licenses purchased determines how many accounts the software can be used on simultaneously. In other words, our software is not being sold individually but as a package. Yes multiple EA's can be run on a single account, currency and/or MT4 platform just not on the same chart. The account number associated with a license can be changed in our customer back office (by the customer) at any time, should they wish to switch accounts without buying additional licenses.