1 /DYNAMIC
/DYNAMIC (default) /NODYNAMIC Controls whether dynamic process setting is enabled or disabled. When dynamic process setting is enabled (/DYNAMIC), whenever the debugger suspends execution and displays its prompt, the process in which execution is suspended automatically becomes the visible process. When dynamic process setting is disabled (/NODYNAMIC), the visible process remains unchanged until you specify another process with the SET PROCESS/VISIBLE command.
2 /VISIBLE
Makes the specified process the visible process. This switches your debugging context to the specified process, so that symbol lookups and the setting of breakpoints, and so on, are done in the context of that process. When using /VISIBLE, you must specify one process.