//preparing terminal symbol
string strSymbolLibName = "IEC_symbol";
string strSymbolName = "X2_B";
int nVariant = 1;
Symbol oSymbol = new Symbol(new SymbolLibrary(m_oTestProject, strSymbolLibName), strSymbolName);
SymbolVariant oSymbolVariant = new SymbolVariant();
oSymbolVariant.Initialize(oSymbol, nVariant);

int iDevicePos = 1; // be sure this ID is unique in terminal strip
int iSortPos = 1;

Terminal term1 = new Terminal();
term1.Create(oPage, oSymbolVariant);
term1.NameParts = plName;
term1.Properties.FUNC_TERMINALDEVICEPOSITION = iDevicePos;
term1.Properties.FUNC_TERMINALSORTCODE = iSortPos;
term1.Properties.FUNC_TERMINALLEVEL = 3;
term1.IsMainTerminal = true;
++iSortPos;

Terminal term2 = new Terminal();
term2.Create(oPage, oSymbolVariant);
term2.NameParts = plName;
term2.Properties.FUNC_TERMINALDEVICEPOSITION = iDevicePos;
term2.Properties.FUNC_TERMINALSORTCODE = iSortPos;
term2.Properties.FUNC_TERMINALLEVEL = 2;
term2.IsMainTerminal = false;
++iSortPos;

Terminal term3 = new Terminal();
term3.Create(oPage, oSymbolVariant);
term3.NameParts = plName;
term3.Properties.FUNC_TERMINALDEVICEPOSITION = iDevicePos;
term3.Properties.FUNC_TERMINALSORTCODE = iSortPos;
term3.Properties.FUNC_TERMINALLEVEL = 1;
term3.IsMainTerminal = false;
++iSortPos;

++iDevicePos;  // new device will be created

Terminal term4 = new Terminal();
term4.Create(oPage, oSymbolVariant);
term4.NameParts = plName;
term4.Properties.FUNC_TERMINALDEVICEPOSITION = iDevicePos;
term4.Properties.FUNC_TERMINALSORTCODE = iSortPos;
term4.Properties.FUNC_TERMINALLEVEL = 3;
term4.IsMainTerminal = true;
++iSortPos;

Terminal term5 = new Terminal();
term5.Create(oPage, oSymbolVariant);
term5.NameParts = plName;
term5.Properties.FUNC_TERMINALDEVICEPOSITION = iDevicePos;
term5.Properties.FUNC_TERMINALSORTCODE = iSortPos;
term5.Properties.FUNC_TERMINALLEVEL = 2;
term5.IsMainTerminal = false;
++iSortPos;

Terminal term6 = new Terminal();
term6.Create(oPage, oSymbolVariant);
term6.NameParts = plName;
term6.Properties.FUNC_TERMINALDEVICEPOSITION = iDevicePos;
term6.Properties.FUNC_TERMINALSORTCODE = iSortPos;
term6.Properties.FUNC_TERMINALLEVEL = 1;
term6.IsMainTerminal = false;
++iSortPos;