Alignment button

Someone please help me asap! I can't find the alignment button anywhere... I'm trying to align a button to the right of the screen but I don't see the align button for it

There is no "alignment" button, you assign CSS to it to make items do what you want. Check the Options pane at the top right first, and be sure you are selecting the actual item you want to alter and not the container or other part of the component so that you see the correct Options for it. If it's not there, then you need to alter the CSS to do it.