The LED Pixelmapper Template (file) is a free After Effects template which helps in creating every single piece of LED group. Instead of setting it up in Photoshop or any other software, this template automatically places the info required in its own container (composition).
This is not a 1-click solution but more a tool to help fellow video technicians/operators who know how it works in After Effects and know the amount of work it can take to set up a pixelmap. In the end it is still up to the user to create their own input/work map and place each LED creatively.
Download link is further down.