No problem at all!
Right now your Customization Group Data Type has a single Customization field:
Since a Customization Group can have up to 9 Customizations, and you’d like those to be associated with the Current Cell Customization Group where it was created, I would first delete the Customizations field you have, and create a new field, called CustomizationsList, for example (Type: Customization, List: Yes).
Currently a Customization Group can hold only one Customization value, so that’s why we want to change this to allow for multiple Customizations within a CustomizationGroup. There are more than one ways to do this and some other posts in the forum talk about how best to structure data, but I would also recommend also adding a field to the Customization data type which stores the CustomizationGroup it belongs to. For example, this could be: “CustomizationGroup” (Type: CustomizationGroup, List: No). This would not be a list because each Customization can only have one Customization Group.
Once the CustomizationsList field is set up on the CustomizationGroup Data Type, and the CustomizationGroup field is set up on the Customization Data Type, let me know and then we can adjust the workflows so that when a Customization is is created, it is associated with the Current Cell’s CustomizationGroup.