copy/paste/select all text button

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Hey

I am trying to make these buttons.
1: Copy text i text felt
2: paste text
3: select all text

I have made the select all text, but I don´t know how to make the copy and paste buttons..

Here is my select all script.

// my text felt is called txt_felt, and this script is put on a button
on(release){
Selection.setFocus("_root.txt_felt");
} 

PLEASE help.