Keep z/OS and z/VSE users from wasting time logging on and off of different VTAM applications. With VTAM/Switch users can switch between multiple VTAM sessions (CICS, TSO, ICCF, IMS, TESTCICS, etc.) by either pressing a PF/PA key, trigger command strings or by entering a special two position character string in conjunction with a PF key (even one reserved by an application). Multiple VTAM sessions with the same application is also allowed. Your users can have as many sessions as you are willing to give them. For instance, programmers can have multiple sessions in CICS and in their text editor.