Unfortunately not, the original tx is only 4 channel.
The camera signal I believe, is a carrier encoded on the rudder channel, which is then decoded by the board to operate the camera. It all works off a 1s battery so there is another limitation.
To fit the extra hardware so you can switch from the tx would add so much weight that it would not fly.
This is just a simple and cheap workaround that anyone can do.
The camera could probably be used on something else but there are far better ones available.