Random selection of ControlNet annotation

[CHollman82]

Would it be possible to add a way to randomly select from a directory containing pre-created ControlNet annotation images? I do large batches overnight while I sleep and this would help inject variety into the results I get, otherwise if I use ControlNet they all end up looking the same.

I hope I'm using the term annotation correctly, I understand that to be the image created by the preprocessor operating on the input image, which is either a depth map, a canny edge map, etc depending on the model used.

[CHollman82]

Anyone? This would be very useful if you use ControlNet with batch image generation... who wants hundreds of images with the same layout?