AI Agent more than 5files knowledge RAG

For diferents projects we need to improve the 5 files limitation and support between 20-30 files. How can i upgrade this feature easily in the standard IA Agent with the minimimun integration? It's possible upgrade this and use it with the "LowCode" instead of API integration? How can integrate easily just this 30 files and sitll working with the same behaviour as standard one.

Regards