I have a circuit using the Arduino Nano template from KiCad (latest version) I am a beginner OK. In case of place restrictions I have place track between the Nano pin. I can put tracks between similar elements i.e. connector with sam pitch. I think there a restrictions in the Nano template, but I do not find it to change anything.
Please help, thanks
If you mean the library model layout, then the current pad sizes suit many situations.
Every user is free to copy the model to their own library with pad shapes to suit individual requirements.
For me, it is sometimes easier to adjust pads, sometimes easier to make my own model layout.