Run Extension in Background in photoshop

HI Adobe Community. 
I have developed an extension where images remain on screen (visible) for a given amount of time. But i want to have the controls on brush and layers (ideally on all photoshop options) to draw that image, which is visible for a given time. 

But the problem i am facing is that once i start the extension, it disable any photoshop option (brush, layers etc etc).

So can we somehow use the extension in backgroud and have the photoshop running in full capacity.