View ALL chat history from Spark?

I have been unable to find an answer to this question, and since the chat history is stored on the local computer by each user the recipient has chatted with, I assume the following cannot be done, but I’m hoping against all hope . . .

Is it possible to view all chat history that is stored on the local computer in one window so the user can scroll through and see a chronological record of all chats throughout the day? I know I can view it by chat/user, but not all users.

This particular user wants to see all chat notices that have come in while away from their desk all in one window to see what came in first, etc.

This is not possible with anything available from igniterealtime.

I figured as much, so thanks for confirmation!