How to assign an expression to a statement Step in TestStand automatically?

Hi,
I am using VC++ and I am trying to create a statement step inside a SequenceFile already created. I can actually create my Statement type of step and insert it at the right place. Unfortunately, I can't find a way to set the Expression for this step. How can I do it?
Here is what I tried:
TS:tepPtr step = engine->NewStep(TS::NoneAdapterKeyName, TS:tepType_Statement);
// Assign its name to the step
_bstr_t calledName(stepName);
step->put_Name(calledName);
// Get all the sequence file variables into a PropertyObject
// TS:ropertyObject variables = TS::Execution.GetFileGlobals ( seqFile );
// Expression construction
_bstr_t expression("resourceHeader=ResStr(");
expression += _bstr_t(id_ptr) + ")";
step->CustomActionExpression.Assign(expression);
I get the expressions created but nothing in the Expression field.
NB: I use TS 4.0
Any hints are welcome.
- Eric

Works fine.
But as you are looking familiar with the kind of programming I do, can I ask another question?
There it is...
I highly inspire myself from a solution found on a discussion. I would like to create SequenceFile Global variables for a SequenceFile object but can't get it to work. Here is the code that should do it:
TS:equenceFilePtr CreateSeqFileGlobals(TS:equenceFilePtr seqFile) {
TS:ropertyObjectPtr propObjPtr = seqFile->AsPropertyObject();
propObjPtr->SetValString("Data.FileGlobalsDefaults.resourceHeader", 1 ,""); // resourceHeader
propObjPtr->SetValString("Data.FileGlobalsDefaults.resourceFail", 1, ""); // resourceFail
seqFile->IncChangeCount(); // Signify the file changed
return(seqFile);
Any idea why this doesn't do what I expect it to do?
Regards,
- Eric

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