Mackie DL806 Reference Manual page 115

Show Images — This allows you to select the channel image from photos that are currently
in use on the current show. The list will display all images currently in use. Tap the photo you
would like to use from this list.
A maximum of 64 images may be used per show. However, if the same image is used
on multiple channels, it only counts as one image (if the image has been selected from show
images and not multiple times from the photo library). Icons do not count toward the 64.
More information about the file system [shows, snapshots, etc.] begins on page 95.
Clear Image — Believe it or not, tapping here will clear the image for that channel.
This removes the image from the channel and, if it isn't used elsewhere, from the
Current Show and the Show Images list.
Since we already named channel 1 the kick drum, we might as well go with the
kick drum icon to boot, right? Tap the kick drum icon in the upper-left corner.
Channel 1 is set: name and image.
As seen in all of these images, a small number resides In the upper-left corner
regardless of name and/or image. This number represents each channel and
it cannot be changed or removed. Trust us, it's for the best, as it is for easy
identification of each mic pre.
Mackie DL806 and DL1608 Reference Guide
115