How to get more memory for flash parameters

I think I have gotten parameters to store in flash memory. Problem is that it seems to only store about 260 of them. Lets say there are 1000. How do I get it to store the other 740? Do I need to increase some #define? Do I need to get the linker script to allocate more memory? If so how? Where does it save them in flash? I can’t seem to find the location or how it even determines it. I’m not used to digging on this hardware level so any help would be appreciated!

No one has a clue???