When I double clic on a text, opens a little window. I enter something, check the enter box and close the window. When I do this for the next time the enter function is swiched off.
Does anybody know if it´s possible to keep the enter box steadily checked.
Where are you seeing an "enter box"? Double clicking on a text opens a small editing window, one can change the text in there, when you click again in the drawing window, the box closes and the changes are saved. I don't see what you are calling an "enter box", there is a "word wrap" box though... is that is? It stays checked if the text you're editing is already word-wrapped. Otherwise, the editing window is always bigger than the text you're editing.