unfortunately you can't change the position of the axis - it will always be at the bottom.
A workaround for it is duplicating the chart and formatting it in a way it will show now data, just the axis.
Now, having the bare axis you can organize the two charts in desired way in a dashboard.
As for rotating axis' labels go with what Tushar posted.
Thanks Tushar. It works perfectly.
However, for the axis rotating, it seems that those workaround mentioned in the posts you shared are a bit overwork. Thanks anyway for the sharing.