Look in your Edit menu.
Simply:
select the text or graphic of your choice.
Choose Cut or Copy (whichever you need to do.), then move your mouse/cursor to your destination, and choose Paste. It's all in your Edit menu, or you can do the shortcuts from your keyboard, or right (control)-click, and choose your selection from the contextual menu. Or, some other process that will transfer your object to the clipboard for your use somewhere else.
Is that helping you at all?