How to combine two waveforms?

waveform = phased.SteppedFMWaveform('SampleRate',50e6,...
'PulseWidth',0.04e-6,'PRF',100e3,...
'NumSteps',5,'NumPulses',5);

sPCW = phased.PhaseCodedWaveform('SampleRate',50e6,'Code','Barker',...
'ChipWidth',0.04e-6,'NumChips',13,'PRF',100e3,...
'OutputFormat','Pulses','NumPulses',5);

These are the two waveforms. Any idea how to combine them?

[Jan]

"Combine" can mean a variety of things. Please explain, what you exactly want.