Hi Gary,
HSDCPro has a built in multi-tone generator that should be very easy to use. There is a description on page 32 in the TSW1400EVM user's guide located at the product page below. Look under the "User Guides" heading and select "TSW1400 High Speed Data Capture/Pattern Generator Card (Rev. B)". Scroll to page 32, section 4.8.
http://www.ti.com/tool/tsw1400evm?DCMP=analog_signalchain_mr&HQS=tsw1400evm-pr
Regards,
Matt Guibord