Reply to Mixdown question

I'm creating a simple house track in FL Studio 10 and I've just got a few simple elements in there at the moment and am just trying to do a mixdown on it to practice.

Originally I had the main synths sidechained to the kick drum, and it sounded pretty good. But I came across the problem that it's a lot harder to alter the levels of the tracks in the mixer if they're sidechained. So I got rid of the sidechain and decided to put a sine wave volume automation on the synth instead but I just came across another problem. Of course the automation overrides my volume adjustment in the mixer.

How can I still have my sine wave automation on the synth and be able to adjust the overall volume still?