Simulink Schedule Editor - Merge referenced model partitions

Hi,

I have a model with multiple referenced models which I would like to generate code from. Each reference model has up to 3 partitions with different sample rates (Ts1, Ts2 and Ts3). The 3 sample rates are identical in all models.

I would like to use Simulink coder to generate code for the overall system and I would like that all parts of the reference models with sample rate Ts1 are gathered together in the same "step" function, same for Ts2 and Ts3. Unfortunately, I haven't found how to gather all partitions of referenced model into 1 partition. Is there a way to do it?

Here a schedule editor diagram example:

Thank you for your help.

Nicolas