Tab stop in CFileDialog and CTabCtrl

When we add some controls to create a new costumered CFileDialog, it's hard to nevigate to the new added controls by pressing tab key.
The solution is to add WS_EX_CONTROLPARENT to the dialog, Cool!
From MSDN,(it's about DS_CONTROL , but WS_EX_CONTROLPARENT has the same effect )
You can create your child dialog box template as you do any other template, except that you must specify the WS_CHILD and WS_CLIPSIBLINGS styles and should specify the DS_3DLOOK and DS_CONTROL styles. The DS_CONTROL style makes sure that the user can use the TAB and other navigation keys to move between all controls, default or custom, in the customized dialog box.

BTW, in the same article, it explained how to add new dialog to other position on CFileDialog
To make room for the new controls, the system expands the default dialog box by the width and height of the custom dialog box. By default, all controls from the custom dialog box are positioned below the controls in the default dialog box. However, you can override this default positioning by including a static text control in your custom dialog box template and assigning it the control identifier value of stc32. (This value is defined in the DLG.H header file.) In this case, the system uses the control as the point of reference for determining where to position the new controls. All new controls above and to the left of the stc32 control are positioned the same amount above and to the left of the controls in the default dialog box. New controls below and to the right of the stc32 control are positioned below and to the right of the default controls. In general, each new control is positioned so that it has the same position relative to the default controls as it had to the stc32 control. To make room for these new controls, the system adds space to the left, right, bottom, and top of the default dialog box as needed.

As to CTabCtrl, the answer is same.