http://www.gvst.co.uk/gtune.htm I mostly use this neat little and free plugin.
Maybe this guy can help you out: [MEDIA] [MEDIA]
http://www.tx16wx.com/
Maybe you mean something like this? http://www.cableguys.com/volume-shaper.html http://www.cableguys.com/filter-shaper.html
You do have the Pro version of Cubase 8? The Elements version does not support sidechaining, unfortunately.
Toneboosters Reelbus http://www.toneboosters.com/tb-reelbus/
Separate names with a comma.