The patch below shows one way to use the Time Split Build and Time Split Break modules.

Example use of Break and Build Time Splitters

It creates a 32 bar drum loop that features four elements (kick, snare, closed high hats and claps) that play together for 16 bars (Main) then elements are removed one by one over 8 bars (Break) and then the elements are added back one by one over 8 bars (Build).

Exactly the same functionality could be achieved using a couple of Time Split 8 modules but the wiring would be rather tedious to patch even using busses to reduce the clutter.