Okay, obviously this "multi-setup" guide doesn't exist. If it did someone would have linked it by now. I've messed with EasyBCD long enough, so I'm giving up. I will try Easy 2 Boot again, it always did work but its a bit more work then EasyBCD would require if it worked.
To any of the apparently huge number of people that read this thread:
EasyBCD could do this, I personally think that its a simple fix. The folders are the only thing stopping this. Maybe by the time you read this thread an update would have fixed this issue so don't give up just because I did. Though I would give up looking for a guide because I have looked for their "Official" one from the FAQ for about 2 weeks now and found nothing for this setup. So you're on your own unless someone else figures it out and makes a guide. Here is how I did it just encase the problem really is just a folder bug and go fixed:
Step 1: Format your flash drive, note there is a big difference between a Removable Disk and a Fixed Disk AKA Local Disk, FAT32 or NTFS will do. I recommend FAT32, unless and single file is above 4 GB.
Step 2: In the "BCD Deployment" tab and "Install BCD" to your flash drive. Select yes when prompted.
Step 3: In your flash drive, extract each Windows Install ISO to a folder in the root of your flash drive with any name you want.
Step 4: In EasyBCD goto "Add New Entry". Now select "WinPE", and select the path to your "Boot.wim", then click "Add Entry". Repeat this for all of your installs.
Step 5: Make sure everything is correct in the "View Settings" tab. Then reboot your PC and boot to the flash drive. Make sure your flash drive is in a USB 2.0 post and not 3.0 unless you have the drivers. If you get an error for "CD Drivers" or "DVD Drivers" then EasyBCD has not been fixed. The last thing you can try is to cancel the install and when it returns you to the welcome screen where you would start the install over again you move you flash drive to a new USB port and try again. For some people this has worked, but that's if it was meant to work in the first place, if EasyBCD has not been updated then that will not work.
Your last hope if EasyBCD doesn't work is to try Easy 2 Boot with the RMPrepUSB tool. You can visit there website and find over 100 helpful tutorials regarding this topic. Good luck everyone, it's hard work but it's well worth it.
Thanks for the help everyone else, DWreck.