I need to use a numeration like this: 1a, 1b, 2, 3, 4a, 4b, etc.
So I cannot use the numbers-attribute because it is restricted to numbers only. When using the text attribute, I´m not able to sort correctly.
The sorting would look like this:
It would be great if this could be fixed, though I have a workaround that works, but it needs two instead of one attributes.