List of possibilities/problems help!

Hi

I have now spend too many hour on this forum trying to sort a few things out.
Running v8.9

1) I have changed the coupons so that they show the logo of the store using the [IMAGE] shortcode by changing the content-listing-coupon.php but how do I make it link to the store section?

2) I use wp-all import and I want the logo for the “store” category to be auto populated but can´t find the field reference as Big Icon Path (https://..) in wp-all import any idea?

3) I want to change the css of the [CBUTTON] where do I do that?

In advance thank you guys!

Cheers
Chris