How Can I Present a Keynote and Run a Program on My Primary Screen?

Hey everyone,

Im doing an online streaming, and i have times where i need to show my keynote presentation, and then i need to change something on the streaming program but i need to go through my desktop. I wnated to know if there is any way of having my keynote presentation presented on my projector, and instead of the presenters display on my macbook, i wanted to be able to controle the streaming program, without loosing the keynote that is projected. So that people seeing the projection don't notice im actualy doing other things on my computer display, it whould just look like i have the keynote running.

I tried mirror screen but that didn't work obviously. So i want the opposite and at the same time, be able to do thing on another program.

Any ideas? solutions?