Need advice!

Context: I’m building a system documentation for a SaaS application that has branched into four applications. The four applications are maintained in four separate projects. I have a chat under each project that has the entire documentation listed under it. There is a single markdown file that manages the entire knowledge base. My plan is to use this as the system document in future and as the playbook for the development.

What each chat has:
- Screenshots for each and every screen, modal and action from the mock-up.
- Breakdown of the workflows for each of the above mentioned sections.
- Business rules and operational workflows for the above mentioned sections.
- Use cases for all the above mentioned sections.

Bottleneck: I have reached the maximum limit for images for the chat.

Question: I need to jump into another chat within the project. But I need the markdown file and the images stored in the previous chat to be referred when the new markdown file is created in the new chat. Has anyone done this before or does anyone out here have a suggestion I should follow before trying this out?