Reset and Shutdown are two different menu items, and their exact location (number of clicks of the buttons) can vary slightly with software release... Basically the procedure is the same, from the front console of the 5000 press the button to activate the menu, arrow down once til the display shows System, press the center button, then arrow down until either Shutdown or Reboot is shown in the display and press center button, Yes/No prompt will come up, press up/down buttons until YES is shown and press the center button again and wait.
It might important to note the reason this is here... if you just pull the plug, any database changes not commited via "Backup Database Save" that were done since the last system self-maintenance routine or controlled reboot will all be lost. I have programmed a complete system more than once, had a fellow tech come in and say something like "Can you move over here, I need that space for ...", so I just unplug the system and move it to the another bench... and then start reprogramming again because I hadn't backed up, done a Backup Database Save, or a controlled reboot or shutdown and my system is back to default because I forgot to do one one little step! Otherwise, there is really no issue with just pulling the power on a 5000, I have done it hundreds of times with no issues.