What is the use of the slice selection knob ?

[Chess1]

I see that I can change the slice in the menu after I have created slices. What I do not understand is what I can do with this. The values that I assign the EXT 1, 2, 3, etc. seem to be globally constant per slice selection.

[Dan]

The most obvious use for me is to select which slice is active when bitbox is in "default" MIDI channel mode, and all of the cells are being triggered on channel 10 by notes 36 - 52