In general, if a fill colour is applied the a group shape via the UI then all of the sub-shapes will receive that fill as well. You can prevent this from happening by setting the LockFromGroupFormat cell in each sub-shape, however this then removes a simple way of set sub-shape formatting when you do want to have this effect.

It seems to me that we frequently build shapes that contain what might be multiple formatting targets. It would be great to be able to define these within a group shape. For example, my group shape could contain something like the following:

User.msvFormatTargets = FORMATTARGETS(DEPENDSON(“Header area”, Sheet.24!SheetRef(), “Labels”, Sheet.18!SheetRef(), “Values”, Sheet.20!SheetRef())

The above would allow Visio to popup a choice dialog with three named zones or targets. If those target shapes were themselves group shapes, the same semantics would apply – ie normal formatting if no msvFormatTargets existed and further choices if they did.

[I’m mis-using the DEPENDSON function in a similar way to the Container relationships cell, but the basic idea is a set of name value pairs]

As visio user I want to be able to print my diagrams over several pages with maximum magnification.
Current state: Now it's time consuming operation to move diagram and check magnification and move print check again.
Expected: I specify how many pages I could give for printing and visio automatically adjust zoom, paper orientation, diagram position, may be diagram rotation and slight reordering to make prints looks better.

Explanation:
Orientation - Some diagrams looks better on horizontal page orientation, some on vertical.
Zoom level: Now zoom function is unified and very simple. But for better printing (and may be layout) visio could use an algorithms from graphic editors with have an non linear scale algorithms. The main idea of this algorithms - is reduce space with low entropy. (such as gups) between diagram elements. Using such algorithms allow to slightly move objects on diagram to avoid printing over page borders.
Rotation - if diagram initially looks diagonal it could be optionally rotated before printing to fit page best way.

Often when working with shapes that reside within or overlapping other shapes, when selecting a shape, especially selecting multiple shapes (shift-click), or copying a shape (ctrl-click), the underlaying shape gets selected also.

If I'm lucky, after several attempts, I can select the shapes I want, but often, I have to assign the background shape to another (new) layer, then lock that layer, and remember to unlock it and remove from the temporary layer when I'm done.

What I am proposing is the ability to lock a shape, by selecting it, right clicking on it, and selecting a Lock/Unlock item from the menu.

This could be a temporary action, not surviving saving/reloading, or locking/unlocking the entire label, but permanent is probably better.

It would be a simple matter to check if a shape is locked, simply right click on it. The menu would give the option it's not. And simply selecting it will change its state.

Using the above described procedure, where I assign a shape to another layer. I often later find a shape locked, and the only way unlock it is to unlock all the layers, then select "Assign to layer...", and figure out which layer is the offending layer, which layer the shape should not be assigned to.

Additionally, a Ctrl-key could be assigned.

The ShapeSheet windows use a tiny font with cells just big enough for that font. That font is very tiny and difficult for my older eyes to see. I would like to be able to resize that font (and the cells) without having to change the screen resolution. Changing the screen resolution would reduce the size of everything else on the screen. I can zoom into my drawing if something is too small. I cannot zoom in for the ShapeSheet windows, and that's the ONE thing that's too small.
Please provide an option for the user to specify the font size for ShapeSheet windows. (NOT the design windows. That's already there.)