The dashboard layout defines the position, number, and size of placeholder gadgets on the page. The options are nearly endless. You can adjust the layout by splitting an existing placeholder or by deleting or resizing existing placeholder.
To split an empty placeholder, click Split from the right hand menu.
In the opened dialog choose how you want to split the placeholder gadget - horizontally or vertically - as well as what to do with the existing gadget: retain it on the left/right, top/bottom or delete.
Please note that you may see a warning that tells you your gadget is too small to split. In that case, simply click and drag to make your gadget larger and then split it.
To delete an empty placeholder gadget, click Delete and the placeholder will be removed. If you already have a chart in place, first delete the chart, then you can delete the placeholder gadget.
How to resize a dashboard element?
To resize a dashboard element (one chart, for example) or an entire section (row of a dashboard) simply type the desired pixel height into the height field or click and drag from the border in the blue area next to the pixel indicator when your mouse turns into an arrow.
Note: The vertical height is unlimited; the page width is limited to 940 pixels.