Thanks to Jason and yawor for the directions to get me there. I can report that once I was able to enter it properly, the flirc_util.exe record pause command worked in the command line. Note that I did have to use .exe in the command, at least for me. I chose to pair the Power button on my remote control as the button I would use to operate the PS button. I also added a key to my touchscreen that I named PS that has the same code as the Power button, so it also operates as the PS button.
Jason, I'm sending you an Excel spreadsheet that details what I've done and expanded on the some of keyboard notes shown on the Setting up Flirc with PS4 page. Do with it as you see fit. I don't know how to attach it to this post. These are some of the notes I put at the bottom of the page that detail how I got into the command line, and what I saw at every step:
* The Flirc interface does not have a key on the Full Keyboard GUI that corresponds to the PS button on the Dual Shock 4. The command line process detailed below must be used to allow the Flirc to pair with a button on your universal remote control.
** The command line process below will still not allow the PS4 to be turned on from a sleeping state, but will work to exit programs like Netflix to get back to the Playstation 4 home screen.
Using the command line for flirc:
1. You will not use the Flirc graphical interface for this. If it's open, close it.
2. Plug the Flirc into a USB port on your computer.
3. Now for the Flirc command line. Thanks go to yawor, one of the Flirc forum administrators, for these directions for an easy way to access the command line and command prompt 3a. Open "My computer" and navigate to the directory where you've installed Flirc (probably "c:\program files\Flirc" or "c:\program files (x86)\Flirc"). If you get any warnings when navigating to program file directories, just ignore them. 3b. When in Flirc directory, press alt+d or click on the location bar at the top of the window, enter cmd and press enter. The command line terminal should open and you should already be in the correct directory. At this point you should be seeing the following:
4. Enter this text at the end of the above prompt:
flirc_util.exe record pause
All together, you will see:
C:\Program Files\Flirc>flirc_util.exe record pause
Hit your enter key, and you should see the following:
Press any button on the remote to link it with 'pause'
Now you can press the button on your universal remote control that you want to use as the PS button from the Dual Shock 4. Once you press the button of your choice, you will see:
Successfully recorded button
5. You're done.