it isn't really just numbers though. what if i want to change out the middle part of the training, and then still run the rest as before? or if i want to cull

it isn't really just numbers though. what if i want to change out the middle part of the training, and then still run the rest as before? or if i want to cull a bunch of the initial training set? a binary is also just numbers, but we know there's other parts to it