My model is an enhancement of @daftwullie_538182 great inserts that you can find here:

https://www.printables.com/de/model/545542-l-boxx-mini-insets

It is based on my enhanced inner volume model of the L-Boxx Mini. I modelled this to incorporate the lids volume to close really tide and stop mixing of parts when carried around.

You will need the STL of my „Bosch / Sortimo L-Boxx Mini Inner Volume Enhanced“ for making the script work. 

You can find it here:

https://www.printables.com/de/model/809982-bosch-sortimo-l-boxx-mini-inner-volume-enhanced

I would heavily recommend reading @daftwullie_538182 manual how to work with the SCAD model to generate the version of insets that you really need.

I just uploaded a few rendered variants here. Feel free to generate your own ones based on the SCAD files or just PM me or write your needs in the comments. I will then try to support you with the needed insets.