Within the edit menu are clipboard, undo and search capabilities for the actual document.
To undo the last action, use this.
To undo your last undo click on redo. Using first undo and then redo brings your document back to the state before you decided to undo your last step.
All selected objects will be transferred to the clipboard.
Selected objects will be copied to the clipboard.
You transferred data with cut or copy to the clipboard? Use this to transfer data from the clipboard into your active document.
To delete selected objects, use this command.
You want to find a specific word in your document? First select all words of your text object with which you like to perform your search. Use find to open the find dialogue.
You want to replace a word in your document? First select all words of your text object with which you like to perform your replace. Use replace to open the replace dialogue.