MyAlg.Cut = 10.;
MyAlg.Tool1 = "ThisTool";
MyAlg.File = "C:\something\vXrY\filename";

MyAlg.MyTool.Cut = @MyAlg.Cut;
MyAlg.MyTool.WhichTool1 = @MyAlg.Tool1;
MyAlg.MyTool.WhichTool2 = @MyAlg.Tool2;
MyAlg.MyTool.WhichFile = @MyAlg.File;