If you want a range comprised of several cells in a single row or a single column, copy the range, then hold Shift while clicking on the Edit menu, and select Paste Picture Link. This pastes a linked picture of the range in the worksheet. Copy this linked picture, select the chart, and paste. This unlinks the picture but places it into the chart. Now select this pasted picture (the one in the chart), click in the formula bar, and restore the formula link, including the sheet name:
=Sheet1!$A$1:$A$2
The end result is similar to that of using the camera tool, but I find camera tool objects on charts sometimes behave a little flaky. This procedure takes a couple of extra steps, but seems more robust.