I am building a site which requires a fair number of collections (30-50), and is focused on filtering these collections with custom filters to arrive at the best product for the user.
I have input 30~ collections so far, and when I go into the editor to create a custom filter, I have access to a maximum of 19 of my collections with which to create my filter.
Is this 19 a hard cap? Is there a way to get around this? If not I may need to abandon my project, unfortunately 
Any help is much appreciated, and I can provide any additional information as requested