QSPI 4Mb and memory map of uc5550

In a previous topic, it was mentioned there is QSPI 4mb:

"By the way, there is 4MB of QSPI flash that has not been used yet. So one day in the future, you will get an additional 4MB of storage "

When will this be available and what features will be available? Since it is external with SPI interface, I could use as a ‘file’ storage memory (??)

Also, is there a memory map documented for the uc5550 ?

Most of it will be used for deployment do you can add as many responses as you like. We like to always leave extra memory put aside for future use.