“w” and “p” switch between write and print, notably (de)activating portray/1 hooks. “+” and “-” increase or decrease the depth. There is no immediate “give me all”. Why would you want that though? Typing a few times “+” should give more context than what you are prepared to read, while it avoids flooding the terminal with an unmanageable amount of data.
There is no real way “back” except changing the code or adding a portray/1 rule that (conditionally) prints the whole thing as you want. I’m happy to reconsider that if there is enough need/interest.