How to edit collection list to show 4 in the same row instead of a max of 3 in CAPITAL THEME?

Store Design
6

Applying the below code should achieve what you are looking for:

@media (min-width:768px) {
.grid-item-33 {
  width: 25% !important;
}
}

Adding the above code at the end of one of your css files should do the job.

GabrielS_0-1664900126612.png
GabrielS_0-1664900126612.png1734×464 400 KB

EDIT: adjusted the code to be applied only for desktops.

Kind regards,

Gabriel