Issue with Element Order in Tree Description Using Sirius Create Tool

[hoajie]

Dear Sirius Community,

I hope this message finds you well. I am currently developing a Tree Description using Sirius and have encountered an issue with the order of elements created using the create tool.

Here is the scenario:

I create a Package element.
I then create a Part Usage element.
When I create another Package, it is positioned after the Part Usage instead of being grouped with the existing Package element.
Expected Behavior
I expect newly created Package elements to be grouped together, appearing after any existing Package elements and not separated by elements of different types (e.g., Part Usage).

Current Behavior
The order of the elements in the tree is based on the sequence of their creation, without consideration of their type.

My Goal
I would like to achieve a sorting behavior where new elements of the same type (e.g., Package) are grouped together, appearing sequentially in the tree structure.

Request for Assistance
Could you please advise on how to achieve this in Sirius? Is there a way to customize the order of elements in the tree so that newly created elements are grouped by type rather than strictly following their creation timestamp?

I have attached a screenshot to illustrate the issue (showing the unintended order).

Thank you in advance for your time and support! Your guidance would be greatly appreciated.

Best regards,
hoajie