I wouldn't mind having an UNDO button.  When working in Sonar I'm probably an 80/20 split using mouse/keyboard.  Unless I'm playing my guitar etc., my hand is always on the mouse, not the keyboard.  I'm just as likely to go to Edit->Undo as use cntrl z.  I'm just not big on keyboard shortcuts, never have been and likely never will be.  The few times I play keyboard I take my wireless mouse, but most of the time I don't even have midi device hooked up.  I really don't see the big deal about giving users 1 box in the Control panel to put a few oft used buttons.  It's kind of like the way Microsoft has been about Windows 8. Now colors I could see was probably a big cost in development time, but I don't see how the same argument could made against buttons for Undo etc.  As far as Clutter how is the Screen Set module, or marker module, any less a source of clutter than a module that has a few buttons such as Save/As, New, Open, and Undo.
 
And while were at it, I'd still like to have collapse buttons on each dock tab, and have the view go back to the prior view when closing a dock tab instead of going to the next tab. :)
 
Dan

I would like to chime in in favour of an undo button. I work with the mouse whenever possible and dislike using the keyboard and therefore also dislike using keyboard shortcuts. I blame my cruel typing teacher for this aversion .
 
Seriously, an undo button would be very welcome.

the salient point is that pre-"skylight" Sonar had customizable control bar panels which were very useful for many people.  Along with the default panels (which were also customizable) there were three "User" panels which were easy to set up with any of dozens of features. 
 
By removing the customization, the program was made easier to understand for accomplishing specific tasks, but less versatile.  This is a running theme in many of the limitations of the X-series Sonar editions - streamlining of the most common tasks while inadvertently interfering with rarer but still valuable edge cases.
 
I imagine that while most users don't miss the Undo button, there are nonetheless times when they use the mouse to accomplish tasks, and that some of these tasks may be uncommon enough not to be worth remembering a keyboard shortcut, but common enough to be worth having access on the surface level of the interface.  Customization of control bar panels would allow for individual users to control which of these cases they need.
 
Many of the current control bar panels offer more features for their particular tasks than I need, and so I have to compromise in order to have the features I most want on-screen.  In Sonar 8 I simply created a panel with many of those features included.

I guess it would be fair to say that more people have a wireless mouse than a wireless keyboard.  And not everyone has a midi controller.  When recording away from the keyboard, their wireless mouse is their controller.  As much as I use Ctrl-Z without even thinking, I can see the case for a little bit of customization, allowing for the likes of a clickable undo/redo.
 
My Frontier Tranzport has an undo button, which I use heaps when recording away from the qwerty keyboard.

If you tie yourself to a mouse then you're not really interested in speeding up your workflow. You really just wanting to hang onto the way you've always done it.

To not adapt your tools to better serve your needs to me sounds unreasonable.

Piano / synth keyboard with a few key combinations and your hands don't have to leave the keyboard to grab hold of a mouse.

Learn keyboard shortcuts (qwerty) again your hand doesn't have to leave the keyboard. It's just so much faster.

Your daw is not just a tool but your recording, mixing, arranging, mastering instrument, why not learn to play it as well as the musical instrument of your choice.

And if you want a feature that's currently not implemented then put In a feature request. Also read the manual. All the info on setting key bindings, both qwerty and MIDI keyboard are covered in quite some detail.

... now wishing for a Undo Holier-Than-Thou Lecture button

Guffaw!

I remember back in the day, secretaries screamed that with the (newly introduced) mouse their hand had to leave the keyboard slowing them down immensely.  They did everything with keyboard shortcuts because before mice, menus and buttons, that was the only way.
 
Then we all got used to mice, menus and buttons and no longer had to learn keyboard shortcuts.
 
Then Cakewalk throws the buttons away and we all have to learn keyboard shortcuts again.
 
Make up your minds, already
 
I also hate keyboard shortcuts, now that my right hand is almost permanently on my mouse a lot of the time (depending on what I'm doing).  Ctrl-this and Shift-Alt-that one-handed takes a lot of twisting and stretching **and looking at the keyboard**.  I prefer a button.
 
However, I like the idea of the midi note shortcuts, if I only had a controller with more than two octaves.
 

In response to the original post, yes, I would like an Undo button.  I would also like a Save button.
 

You all making many valuable points and I appreciate your support! Using mouse to me is faster than using keyboard. I am fast with the mouse. And if Cakewalk arranged interface even more mouse- friendly, I would be even faster. With my 25 years of experience with MIDI, I know that I cannot rely on it to be consistent. Also- there is a way to control Transport via MIDI. If you saying, we do not need button for Undo because it can be done via MIDI from keyboard, then why do we still have Play/Record/Pause? Any MIDI keyboard has transport function and can control DAW… RIGHT? Actually- Wrong. I have Yamaha Motif, Roland Fantom and Novation Launchkey as my main controllers- all 3 have transport- none of them is able to make Sonar properly start and stop on demand. Not to mention “Record.” So why not use typing keyboard for recording and play/stop? Lets get rid of all buttons!