Hi Boyan,
I see what you mean. Kind of hard to set the lot size if you don’t know the risk. During the process of adding the EA to the chart there is a box that shows up on the screen. If you click on inputs then you can see the SL and calculate the risk before the EA is actually attached to the chart. When I want to change the lot size of an EA already installed on the chart then I right click on the smiley face or the blue hat in the upper right corner of the chart. Then I select properties and from there I can see the SL and I can calculate and add the lot size.
The way you eventually did it works!
Alan,