Currently, you can create up to 100 different query suggestion configurations per application (https://www.algolia.com/doc/guides/building-search-ui/ui-and-ux-patterns/query-suggestions/how-to/creating-a-query-suggestions-index/js/#using-the-dashboard), and this limit cannot be modified or increased.
In you require more than 100 different query suggestion configurations within a single application due to multiple environments (ie: production & staging) using the same app, we recommend splitting your environment into separate applications. This allows you to spread your setup across multiple applications and have 100 different Query Suggestions configurations per application.