Within the client GUI. Open the System Overview. Right mouse click on the agent/executor you want to move objects off. Then select the Replace from the sub menu. Within the "Replace use" window, you can select all your object or hand pick just a couple of jobs from this agent/executor. Then in the replace by field, you can select the agent/executor you want to move the object to. Once you have select all the objects, click the "Replace..." buttom to move them.