I want to add text to the left of the vertical axis so I need more background space such that the full text fits to the left

As it is now it will appear truncated. I do not want to change the graph itself but I want to increase the background area around the axes so I can enter a text block using the drawing tools. 

I need a list version of Contourplot. I have a list in the format [[z1,x1,y1],[z2,x2,y2],...[zn,xn,yn],...]

where z represents some data value at coordinate (x,y). Basically I need a 2D figure with the x and y values shown on the axes and the z-value represented in a color code. Just like "contourplot" except in my case I cannot use it since I do not know the general function of two variables but only the list  with the data points. Is this possible with a built in Maple command?

Thanks