If allowed, a timeshare unit can be subdivided and used as two smaller units for the purposes of use or exchange. e.g.: a three bedroom unit might be split and deposited as one 2Br unit and one 1Br unit giving the owner two weeks for use or exchange.
A few timeshare resorts have units that are two living units separated from each other by a lockable door, thus the word "Lockout". Since there are really two units, each side can be used separately. One could be used at resort, and the other used for exchange. Or both sides could be used for exchange.The exchange company determines how many weeks of trade are given; typically if both sides have a kitchen, 2 weeks will be given.