Do I need nest plus for backtesting and execution?

Do I need nest plus when i have zerodha trader, Amibroker and subscription from global data feeds. I have trying to set up nest plus but it doesnot work with the latest version of ZT(3.11).

Could someboady help me set this up. Everytime I load ZT nest plus tells me to install update. I do that but still get same message. I have also tried downloading and installing the version directly from NEST plus website (2.9.00)

Omnesys has stopped supporting backtesting tool on NEST. At Zerodha we are about to launch our platform Pi, which has a much more advanced interface.