Can TRAKTOR PRO 2 be used?

Yes, DDJ-WeGO4 supports TRAKTOR PRO 2.

If you want to use TRAKTOR PRO 2, please update the firmware and the setting file for TRAKTOR PRO 2 to the latest versions.

Please see the AlphaTheta support page for the latest versions of DDJ-WeGO4-compatible TRAKTOR PRO 2, DDJ-WeGO4 firmware and TRAKTOR PRO 2 setting file.