I tried it.
It works decently. Found some bugs though.
It wont let you input negative values in the margin area.
I try to type (-1) to indicate I want to buy Bitcoin 1% under spot and you cant.
It works with .05, 1 , 2 ,3 , etc .
Does not let -.05 , -1, -2, -3, etc
I found a few other bugs within your site as well, and can help you.
You should give me a free copy to test as a favor???