Just a few other suggestions on the crate....
I left the door open to it all day long, and gave Eddie my foster puppy constant access. I would at some point during the day or evening hide little treats in there without him knowing. So, if he ever accidentally went in there on his own, he discovered treats. That just reinforced the idea that the crate might be a cool place to hang out.
I also did the thing where I just put him in really quickly, and gave him treats each time. No calling or command. Just plopped him in with a cheery voice and said, "Yay! Eddie! Good boy! See you in a little while!" And I always said that. Or, at night when I put him in, I always said, "Night-night Eddie! Love you!" (same cheery voice) and then turn out the lights. I made the whole thing very routine. The routine seemed to help. Always the same time, always the same statement, always a treat, and then always turn out the lights.
Also, I hate to say it again, but you HAVE to get up a few times in the night when they're babies to let them out. I got up every three hours with Eddie (set the alarm) got up, took him to the potty spot, let him go, PRAISE PRAISE and then IMMEDIATELY back to the crate. No stopping to sniff, no playing, no drinks of water, nothing else.
You just have to be super consistent. Dogs are always looking for ways to get around the rules, and if they suspect ANY options (crying in the crate until you let them out, letting them play when they should be pottying, etc.) they'll try to use that technique. Don't EVER let Koko out of the crate when she's crying....even when its time to take her out. Wait until the moment she stops. You don't want her to think that crying will produce results.
Anyway..hahah. .that was lengthy. But, don't worry..she'll get it. Personally, I wouldn't use the pads, cuz that just trains them to go on the pads IN THE CRATE...I would just put the work in to take her out of it enough...that's just my HUMBLE HUMBLE opinion..but the way I see it, its like training her twice. Why not just train her that we go outside right away? But, you've got to do what works, and if that works, I say go for it.
Good luck!