Does the Wavetek 270 Function Generator support variable symmetry?

[JacobGrigg]

Hi,
Can the Wavetek 270 Function Generator vary the symmetry of a square wave for use as a PWM signal?
I have looked through both of the following manuals and have not been able to find a definitive answer.
http://www.testwall.com/datasheets/WAVET_270102943.pdf
http://128.238.9.201/~kurt/manuals/manuals/Other/WAV%20270%20271%20287%20Introduction%20Manual.pdf

Thank you in advance,
Jacob