ALV question

Hi!

I'm using REUSE_ALV_GRID_DISPLAY fm. There are several columns and an icon column.

We can say, there is 5 lines in the list.

After the user is double clicking on the icon column in the third line (which is empty by default) an ICON_CHECKED have to appear there.

Then the user is double clicking on the first line. The ICON_CHECKED must disappear from the 3rd line and has to appear in the first line.

I know how can I use the user command at alvs (more or less at least). I need detailed informations about changing the selected lines and the not selected lines in the alv list during the events.

How can I make this?

Thank you in advance

Tamá