So i have in total 8 tracks in my project so far but aim to add much more,The first 5 are different guitar parts and then i have 3 different drum tracks from addictive drums.
The drum parts are already clipping,They are fine if i have them playing singularly,But when the 3 are playing i get clipping ,If i turn down the volume to stop it i do not get the full drum sound.
What can i try  ? I,m still learning this program so am pretty basic experienced.
 
Thanks for any help 
 
Dan 

1.  Turn output volume down on every track 6 dB or more until you are well below clipping.  Then slowly bring up the track and/or bus volumes to get your balance right.  Build your mix up from quietude, not down from overload.  If things seem too quiet, turn up your speakers, not your track volumes.
 
2.  Use a concrete or brickwall limiter at the end of each channels' and busses' signal chain.
 

BRainbow
1.  Turn output volume down on every track 6 dB or more until you are well below clipping.  Then slowly bring up the track and/or bus volumes to get your balance right.  Build your mix up from quietude, not down from overload.  If things seem too quiet, turn up your speakers, not your track volumes.
 
2.  Use a concrete or brickwall limiter at the end of each channels' and busses' signal chain.
 

Thanks so much for taking the time to reply,Appreciate it,Will give that a try later on tonight.
 
Dan

I get hot signals from Addictive drums as well. I usually turn down the faders in Addictive drums mixer or turn down the gain on the audio channels that it feeds.

Same with BFD2/BFD3
 
I lower all BFD faders on it's mixer page by 9dB to get what I call a reasonable level inside SONAR

I tend to use the gain knob at the top of the audio channel instead of the slider making sure the tracks tickle the orange part of the metre, prefably not at all. Then consider:
 
1. the soundstage, if everything is dead centre you will get a build up and clip easily; and
2. consider using eq to cut the unused freqencies so excessive overlapping doesn't occur.

Another easy way to lower all tracks simultaneously without affecting your automations or the gain structure (which affects compressors) is to select All audio tracks you are mixing with (makes a quick group), then press O. This puts you in Offset mode. (note the volumes in the channel now show a + sign. Now while holding down control, lower the volume of one of the tracks by say 6 dbs and this will Offset All of the selected tracks volumes without affecting automation or gains pre-compressors. (You can also adjust in the group manager if the quick group volumes adjust in absolute or relative. I prefer relative as is seems to preserve the mix better) Be sure to press O again when you're done to return to normal mode. I use offset mode both for gaining headroom and tweaking mixes that rely on automation.

As said above turn it up!  the real solution is keep your monitors at the correct level your used to listening at. Everything will fall into place this way. We often turn them down , say while overdubing, and forget to put them back at our benchmark level. Our benchmark is what we set for mixing at say 85db. ( as measured on a db meter)    I have a white out mark on my master level knob. So in other words, a Master Buss output of o db will be 85db listening level.   
If you start a project and have your monitor output set lower, say 75db, your going to push your tracks to try and get back to 85db and here lies the problem. A clipping drum track should result in a 0 master buss and be 85db in the room and obviously loud to your ears. 
 
And don't forget that with midi the velocity of each drum part makes a huge difference. I try and keep things at around 100 as the middle point. There are sometimes differences in the timber of the drum sample at different velocity levels. Avoid maxing them out all the time.