hi its a simple strategies to start Our strategy will we needto check that we have only one orderon our accout to dothis we drag the IF block. In the first blockparameter we will the set position/ordersamount variable from the left hand side. As the second Paramertswe wil entir the value 1. The Next block which we drag will be the EMA indicator of less value so we have position that amount to less than 1.then we are going to continue and calculate the EMA value. The EMA block Retrivesa value at only one point the EMA cross we need at least 4 points to point on eachof the indicator . we will the chek the 10 - period EMA wite the 30 - Period EMA.Next step we need to get pervious value we copy our EMA with the curent valueand change the variable and shift the parameter inside it.The last EMA blockwill calculate for the value fot the previous candle with a bigger period .After this block we will have four correspending pointso so we can get the cross between the two lines. so to do this we will need a create a check ion block IF EMAsmallCurent is bigger or less than EMABigCureent. At the finle we have to trading operations when the event of a cross the happend one trade on markeet will be shel and another wil b buy