I was wondering if this is possible

I have seen a way that the proffie board does accent LEDs by using sub blades in the coding would it be able to do something similar with the propboard

Not at the moment. But if you are using a LED strip and you want the accent LED to do the same effects as the blade, you can directly use the first LED of the strip as the accent LED.

Right great thanks for the quick response it sounds like a great idea can I use more than one or can I only use the one

You can use as many as you want. Just remember to update pixel_count in the configuration file to include all the LEDs you are using (accent + those in the blade).