That is true; you cannot do that. As well, if you have amendments that are brought in for a specific clause and there is more than one amendment that is submitted, they are addressed in the order they come in. Therefore, if the first one that you consider is moved and accepted, then you can't consider the others. You'll see there are some rules like that as we go through.
Evidence of meeting #48 for Status of Women in the 42nd Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was action.
A video is available from Parliament.