I want to capture and stream my apps from my computer to my TV with upnp/DLNA, without saving videos on my HDD and extra application, can you add this feature?

Bandicam only can "record and save" a steaming video, game, desktop screen, and etc.
You have to "save" the recording file somewhere on your computer or TV's HDD/USB.

If you can access to your TV with Windows explorer, you can save the recording file to your TV
You can change the saving folder under the General tab of Bandicam If you can't access to your TV with Windows explorer, you can't save the recording file.