You can move text labels on the Chart window.
NOTE: To move a text label, you must display the Chart toolbar. To display the Chart toolbar, right-click the Chart window and select Show Toolbar from the Chart window pop-up menu. Click here for more information.
Perform the following to move a text label on the Chart Window:
From the Chart
toolbar, click 
NOTE: If you do not see this button, you need to display
the Chart toolbar.
Perform one or more of the following:
To move a single
text label to a new position, hold the cursor over the text label until
you the see move
cursor. Click the mouse button and drag
the text label to a new position, and then release the mouse button.
To move multiple
text labels to a new position, hold down the CTRL key and then click each
text label you want to move so that they are selected.
Release the CTRL key. Place the cursor over one of the text labels until
you the see move
cursor. Click the mouse button and drag
the text label to a new position, and then release the mouse button.
TIP: You can also select multiple text labels by clicking and
holding the mouse button while drawing a selection square containing the
text labels you want to select.