There are many multiple selections across SAP Screen Display.
Example :
1.Go to Tcodes FS10N
The below screen will be displayed.

2. Click Multiple Selection button

3 The below screen will be displayed.


subscreen

to include in a subscreen.

subscreen

to exclude from a subscreen.
You can copy and paste mulitple items into those boxes (about 8 boxes) using Ctrl-V like normal.
More boxes will appear after you hit enter, and you can scroll and paste into them as well.
But if you want to paste in lots of selections at the same time, you can use the magical “Import from text file”

The following screen will appeared

To use the Import from text file button, you can either put the content you want to add into a text file and upload it,
or you can copy it from it’s source (SAP, Excel, etc) and then click the Upload from clipboard

This can paste lots and lots of items to you multi-select
Also check out the Multiple Selection button

This brings up a search screen that you can do a search and then use check boxes to select mulitple items from the search result
