Frame Devider is an InDesign javas­cript to divide frames in equal parts.
But it also has some noise sliders and shuffle func­tion to add some randomness.

Download script or See how I used it here.

Shows the size of the grid-devision as edit-field so you can copy and work with the value.

You can add and sub­tract 1 sub­di­vi­sion with [+] and [-]

View / Down­load the script