If I understand correctly ur $ Risk is $50 and you would like to set the number of contracts automatically. I would use the following : SShare=50/Price/100. Once u selected ur SL on the chart by Dbl+Cliking (Price=Ask-Price+0.01), U r saying that the number of contracts to trade is MyRisk/SL/100 , in ur case 50/0.5/100 = 1 contract. That is y u it would work around the 0.5 area. Hope that helps.
The formula is : $RISK/SL/100
here SL or Price=Ask-Price+0.01 u r actually saying that my SL=Ask - My_Selected_Price +0.01 $ to make sure that u r within ur parameters. the "Price" within the formula is the one u clicked.
The following is the way I have mine setup :
StopPrice=Price-0.01;DefShare=BP*0.97;Price=Ask-Price+0.01;SShare=500/Price/100;Share=DefShare-SShare;DefShare=DefShare+SShare;SShare=Share;Sshare=DefShare-SShare;Share=0.5*SShare;TogSShare;ROUTE=LIMIT;Price= Ask+0.05;TIF=DAY+;BUY=Send;DefShare=0;TriggerOrder=RT:STOP STOPTYPE:LIMIT PX:StopPrice-0.05 ACT:SELL STOPPRICE:StopPrice QTY:Pos TIF:DAY+;
