Wireless Workbench 6 install help with Mac OSX Mavericks

Date Updated: February 13, 2019 FAQ #4423
I just installed the new WWB today and got this message "Wireless Workbench Can't be opened because it is from an unidentified developer", I blew out my old version and now have none, can anyone offer help? I am on Macbook pro with 10.9.1 I was running a slightly older version of WWB 6 without any problems now I can't get it back either, same warning.

Apple Mavericks OS has a securirty feature called "Gatekeeper", which attempts to prevent the operation of software that wasn't purchased through the App Store. This feature can be skirted, or turned off completely.

See the following link for more info: