Hi, This is one of those things that is easy to do but at least for me not that easy to explain but let me try. Select the object you want to move in the Scene Tab. There are other ways to select but that might be the easiest if the object are all overlapping. Under the Tools menu or using the icon select the Universal Tool. You will see the Universal Tool widget somewhere in the Viewport Window. Use the Universal Tool widget (Click and drag on the Arrow to move the object you selected in the direction of the arrow.) You can use the Universal Tool to move or rotate or even scale the object that you select. And remember, if you mess up that Ctrl-Z or Undo under the Edit Menu can come in handy.

I hope this helps. I remember when I was trying to learn all this. (Still learning....)

Please ask any questions, there are lots of people here that are willing to help

Jack238