I am trying to add my signal source arrows and the 1-4 options don't fit my needs. I assume 5 and up are for my own design? If this true, how do I go about accomplishing this? I have attached a sample of what I am looking for.
Interesting that one of the 4 doesn't work for you. Those are all industry standard. The examples in NFPA-79 even use the "oyster cracker" shaped sources and destinations. I prefer the style 1 arrows myself because I don't have to worry about my rung numbers being too ling to fit inside a box or oyster cracker.
But if you wish to create your own I suggest starting with one of the existing ones. You need to copy all files, for both horizontal and vertical versions, plus don't forget to get both source and destination files and grab the inline versions as well. You can edit with plain AutoCAD. Change the graphical appearance to suit you. You will also need to create bitmap files to replace the images for style 5. Below is an excerpt from AutoCAD Electrical Help, which explains the location and naming convention for the bitmap files:
Add custom signal arrow styles
The icon menu graphics that display for the various signal styles are bitmap files saved to your C:\Program Files [(x86)]\Autodesk\Acade {version}\Acade\ folder where AutoCAD Electrical's Insert Signal utilities and Drawing Properties tool can access them.
Because I haven't used this before, I was a bit unclear what I'm actually after with this. The oyster cracker is what I want to use, but when I place it, I want the wires disconnected with text on both ends. I usually have three lines of text on each.