HL7 CR/LF to create a blank space between segment

My attempts to add CR/LF between segments

// Add CR/LF after "Total Cost:" if multiple "Item Number:" exist
            //$$$LOGINFO(tItemNumberCount_" "_tTotalCostSegment_"----cr/lf")
            If (tItemNumberCount > 1) && (tTotalCostSegment > 0) {
                Set tOBXSegment = pOutput.GetSegmentAt("ORCgrp(1).OBRuniongrp.OBXgrp("_tTotalCostSegment_").OBX", .tStatus)
                //$$$LOGINFO(tOBXSegment_"----"_"tOBXSegment from cr/lf")
                Set tOBXText = tOBXSegment.GetValueAt(5) //_"||||||\X0D\\X0A\" // Append escaped CR/LF representation
                //Do tOBXSegment.SetValueAt(tOBXText_"|\X0D\\X0A\|", 5)
                //Do tOBXSegment.SetValueAt(tOBXText_"$c(13)_$c(10)", 5)
                //Do tOBXSegment.SetValueAt("$c(13)_$c(10)", 11.1)
                Do tOBXSegment.SetValueAt("\X0D\\X0A\", 11.1)
                //$$$LOGINFO(tOBXText_" cr/lf OBX mod")
                //Set tOBXTextCRLF = tOBXSegment.GetValueAt(11)
                //Do tOBXSegment.SetValueAt(tOBXTextCRLF, 11)
                
            }