Field for number of objects in the array

[Anonymous]

Is there a way to count objects of the array of a dynamic block and set a field for it? I have not been able to find it anywhere...I want to count these blue lines and make it to update in the text above. Thank you in advance.

[kamil_pajakH724R]

The main problem is that my field "disappears." The field always has a background. After validation, my field becomes plain text and cannot be edited.

[kamil_pajakH724R]

I have some interesting information. What I'm doing was in AutoCAD 2024. I tried to do the same in AutoCAD LT 2024 and it worked. The difference between these versions is that I have the educational version of AutoCAD 2024, but AutoCAD LT 2024 is commercial. Could there be a difference here?