How to bypass Wix's limit (1000) for conditional dropdown?

Thank you so much for your help.

I have tried adding it to replace some of the code but I’m getting an
i is not defined on this line:

for ( i = 0 ; i < countDB ; i ++ ){

. How can I declare the i correctly?

I did try to search for it but I’m still not sure.

I’ve tried declaring i with val but i’m not sure how to correctly do it.