first of all I would like to say that I am not an electrical engineer but create circuit boards as a hobby.
If you create a PCB with KiCad “quick and dirty” and use the default settings, you will quickly find that the default settings are not optimal or certain design rules are not followed.
I have created two templates for Aisler that apply to the 2-layer and 4-layer PCBs.
I would like to attach the templates as a .zip file, but I can’t upload any files. Is there an eMail I can send them to? Then you can add them to the desing rules page so someone can download them and create a PCB directly following Aisler’s rules.
The templates are certainly not complete or 100% correct, but can serve as a basis.