Need an EA that will calculate a range based on a formula and draw boxes for the day based on this range value

Hi,

I need an EA for MT4 platform that will automatically draw a rectangle based on a value that is calculated and stack these ractangles up for a support chart on the H1 tmeframe (starting from highest of the day) and also stack rectangles down

for a resistance chart (starting from lowest of the day) I can provide a example template of what is required and the formula i'm using. It is a relatively easy job I think for a good programmer. Please get in touch if you can help.

For example in my support chart I get a value of of 629 in first day in example below. 314.5 is the half of this value. So i need the rectangles to start from the highest point of the day so far and then automatically start stacking the boxes downwards using 623 as the length of the box. the half lines are also drawn for the half of the rectangle. For the next day an alternate colour for the stacked boxes are drawn in (yellow) Please get in touch for further explanation or info. Thx 

 Thanks