I can’t get the popup plants inside the plug in, the code is the same as the example from cabbage,thanx
Can't get popup plants inside the plug in
it stay out of the plug in
Popup plants are a no-no in plugins due to the way each host manages extra dialogues. I would recommend that you simply make toggle the visibility of the plants you want access to. 
Check out the toggling plants demo csd file for a very simple example of what I mean.