Arg on HP Prime

[Plantarum]

Dear fellow HP users,

This may have been asked before or a stupid question, but I can't figure out where the ARG function is on the Prime.
I have used HP 48 and 50 since they came out and after calculation, you could do right shift EEX to get the arguments back on the screen.
Say 10 enter 5 +
Answer 15
Richt shift EEX (ARG) will show 10 and 5 again.

This is a very useful function and I can not find it on the prime.
I like to use the calculator in RPN, because I am used to that, but in that mode the arguments are not automatically shown on the left side of the screen.

Any help is much appreciated,

Hubert