Make the labelling data slice creation clearer, controls over "overlap", "consecutive" and "spread out".

[robertfjones]

I have noted that the labelling data slices are not well controlled, we should have clear guidance and/or controls over how the slices are generated.

I think most labels should overlap in some way to present more training examples for positive classes.

https://compose.alteryx.com/en/stable/user_guide/data_slice_generator.html?highlight=overlap#Data-Slices

[kveerama]

Perhaps we should make the label search a bit more interactive in real time. So when user gives parameters, we can interactively tell what will happen during search, and maybe we can even propose a different set of arguments for search.