Your suggestion to enhance the selection storage feature by allowing users to assign custom names to their stored selections is a great idea. This would indeed improve the organization and retrieval of saved content. There is already an ongoing discussion and a related issue on this topic, which you can find here: Improve Stored Selections · #409 · EsotericSoftware/spine-editor. This feature has been requested by multiple users and is on the roadmap for future improvements.
Currently, you can store selections using Ctrl+number
and recall them with the corresponding number key. However, adding the ability to name these selections would make it easier to remember and manage them, especially in complex projects.