HP 50g Graphing Calculator - Manual (Page 855)

Page L-2
The items show in this screen are self-explanatory. For example, X and Y
positions mean the position on a line (X) and the line number (Y). Stk Size
means the number of objects in the ALG mode history or in the RPN stack.
Mem(KB) means the amount of free memory. Clip Size is the number of
characters in the clipboard. Sel Size is the number of characters in the current
selection.
EXEC: Execute command selected.
HALT: Stop command execution.
The line editor also provide the following sub-menus:
SEARCH: Search characters or words in the command line. It includes the
following functions:
GOTO: Move to a desired location in the command line. It includes the
following functions:
Style: Text styles that can be used in the command line: