In X2, if I wanted to copy some midi notes I used to be able to lasso the notes to select them, and then Ctl-Click-Drag to copy.  If I do that in X3 it erases the notes.  I looked through the help files and did some google searches and didn't see anything on this.  I've been using Ctl-C and then move the now time and then Ctl-V, but this is slower than the old way in some circumstances.  Is there a new key combination for this in X3?

Try holding the CTRL key while you drag the lasso'd notes.  That should copy them and leave the originals in their place.

You now have the smart tool that does things "differently" lets say! What I do now is I learned to switch the smart tool to the Select tool and then you can do exactly like you want to do.
 
I know, when I first heard this, (as many others did also) I was like "Why?" Didn't make sense, then. Now that I have learned the new way and use it along with the other features of the smart tool, I can get -r -done fairly quick.
 
 

Yeah, I misread the OP's post.  He already states that he tries CTRL click drag and it doesn't work.  My bad.  It does work though if the smart tool is selected.
 
Grim is correct...once you get the hang of the use of the smart tools you'll love it.

But the OP's saying it worked fine in X2, and X2 already had the Smart Tool, which I don't think has changed in X3.

You have to right-click to lasso now.

Thanks guys.  When I switch to the Select tool it doesn't allow me to Ctl-Click-Drag to copy.  Nor does the Select tool allow right click lasso.  
 
I looked in the documentation again and there doesn't seem to be any way to Ctl-Click-Drag to copy with the Smart tool or the Select tool.  It's like they got rid of this functionality altogether.  Too bad - this will slow me down.
 
 

IDK, I ust be missing something, it works the same in X2 and X3. Using the Smart Tool, Right-click to lasso and Ctrl+click drag will copy or move notes depending on which button is released first. If the Ctrl key is released first, the notes are moved. If the left-mouse button is released first the notes are copied. The Select Tool uses left click to lasso although I prefer to use the Smart Tool and right-click for lasso.

Scook is right in that if you switch to the select tool, it should operate with a left click to select.
 
However, if this isn't happening, something is up with that.

I try never to shift out of the smart tool if possible. The thing to watch with it is where the cursor is (and what it looks like). If you are too close to MIDI notes, the right click is the "erase" tool, so is more getting a feel for how the smart tool is functioning.