what is 'at line-selection' and user command?

Answer Posted / sumit sharma

At Line selection is an event which is triggered after the
first list output. It is used for interactive reporting to
display the detailed information after double clicking the
line or the feild(using getcursor command) in the basic
list.

At User Command is used to define our own function keys,
the best use is in creating our own menu for a list.

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