SEN0539 EN Gravity Voice Recognition Module Savings

I am using the DF2301QG Voice Recognition Module (SEN0539) and I'm very
satisfied with its performance. However, I have encountered some challenges
regarding command management:

ISSUE 1: COMMAND DELETION BEHAVIOR
According to the documentation:
- "Delete command word" should remove a specific command
- However, when I use this command, ALL custom commands (ID: 5-21) are deleted

QUESTIONS:
1. Is "Delete command word" supposed to delete ALL commands, or just one?
2. If it deletes all, is there a way to delete only a specific command?
   (For example, delete only ID: 15 while keeping ID: 5-14 and 16-21)
3. When a command is deleted (e.g., ID: 10), what happens:
   - Does it leave a gap (ID: 9, [empty], ID: 11)?
   - Or does it shift commands down (ID: 9, ID: 10←was 11, ID: 11←was 12)?

This is important for managing commands without re-training everything.

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ISSUE 2: COMMAND BACKUP/TRANSFER
- I have trained 15-17 custom commands on one module
- I need to use multiple modules in my project
- I must manually re-train all commands on each module separately
- This is very time-consuming (30+ minutes per module)

QUESTIONS:
4. Is there a way to backup/export the learned commands from one module?
5. Can I transfer or copy commands from one DF2301QG to another via UART?
6. Is there any UART command to read/write the custom command database?


These features would be extremely helpful for projects using multiple
modules and would save significant development time.



Best regards