How to calculate the depth distribution of fuel consumption?

Hello everyone,
I am currently conducting a calculation of the depth distribution of fuel consumption in the core. Previously, I used ‘diff’burnable=True’ to calculate it. Then I found that its calculations were too detailed. I only needed to calculate the depth distribution of fuel consumption for different assembly , rather than calculating the depth distribution of fuel consumption for each material. Then I tried using the ‘model. differentiate_depletable_mats (diff_volume_method=’ divide equally ‘)’ method, but I don’t know how to set it to calculate the depth distribution of fuel consumption for different assembly , rather than setting the volume of each cell. Do you know how to complete this calculation? Looking forward to your answer.
Thanks

If you create a different fuel material for each assembly and then don’t use differentiate_depletable_mats you should get what you want. I don’t think there is a way to specify not to differentiate specific clusters of fuel cells.