Setup Auto Trading - Apply quant restriction

I tried the feature "Apply quant restriction?" and set:

Forex

Apply quant restriction?

Min position: 10,000

Max position: 20,000



Now I want to disable it but I can´t. The box is always checked no matter what and shows the values:

Forex

Apply quant restriction?

Min position: 10,000

Max position: 9,990,000