My brain would benefit from the possibility to format the numbers in the custom ID fields.
You can now enter a prefix and a number is added to the prefix.
Next to setting the prefix, it would be nice to be able to set the number of characters.
That way you could have ID numbers like
IDN-00025
IDN-00102
IDN-09245
which are far better than
IDN-25
IDN-102
IDN-9245