You can do it both ways.
An embedded chart is shown as part of an existing worksheet. A chart that is not embedded is on a chart sheet of its own.
It will work if you do it directly on the worksheet or on the chart, but not in the chart wizard or the chart options. So you can type the value in a cell and use Alt-Enter and then include the cell in your chart. Also, once a chart title is on a chart, click directly on it and you can use Alt-Enter or even just Enter to put part of the title on a new line.
Everything adds size to a worksheet. However, if what you mean is is what the hyperlink jumps to included in the file if it is part of another file, then no that is not added in. It is just the text of the link itself that is taking up space.
Printing is not a method for copying data to another part of the worksheet.
Yes you can. You just have to be careful where you click when you are starting. Almost any part of a chart can be clicked, so you may click an element of it rather than the whole thing. You need to click on the edge of the entire area, getting the 4-headed arrow before dragging.
An Excel pane is part of the window. The worksheet itself can be split into panes using the Split option. You can also freeze panes, so that one is on the screen all of the time. You also have the task pane, which is outside the worksheet, but can show other things, such as help options.
It did not chart
By the cell identifier.
plot area
the key.
Legend Key
size