When a table is preceded by several paragraphs last of which is empty, selecting more than one of those paragraphs and the table excludes the empty paragraph from the selection. 

Steps to reproduce:
- Add paragraph with text, followed by empty paragraph, followed by table 2x2.
- Select from the beginning of the document to the last table cell (Note that the paragraph after the table is not included in the selection)
- Copy the content and paste it in the document below.
- The empty paragraph is not present in the pasted content, as it is excluded from the selection.

When an IncludePictureField is selected, the ImageMiniToolBar should be shown.

When mouse is over selected text, the cursor should be changed to Arrow. 

Provide functionality allowing a document to be thumbnailed. The customers should be able to export a document to an image.

Add support for character spacing. Implement UI in the FontPropertiesDialog allowing to adjust the spacing between characters

The property in controlled by w:spacing element in OOXML specification.

 Add API for switching the flow direction of RadRichTextBox dialogs and mini tool bars. 

Currently this could be changed manually using the FlowDirection property, for example:

(this.radRichTextBox.ImageEditorDialog as ImageEditorDialog).FlowDirection = FlowDirection.RightToLeft;

but the result could be unexpected for Right-to-left.

The scenario is very common, as in MS Word the option Table -> Layout -> Cell Size -> AutoFit ->  "AutoFit Contents" changes the PreferredWidth of the table and its columns to Auto.
Also the tables imported from HTML have these properties set by default.

Scenarios:
- Auto-sized table occupies minimal space.
- All auto-sized columns in a table (table itself could be, or could be not, auto-sized) should always be sized proportionally to their content length. Currently, such columns are sized equally in the case when there is enough space for all of the content, which is unexpected. (also see the attached images for the scenario with fixed-width table + auto-sized columns).

This includes:

- Create multilevel list template for Heading styles

- Add button in the ribbon list styles gallery for applying this list template

-  TOC generated from heading styles associated with list should also include the numbering of the headings (see the related bug 91763). This is not absolutely required for the current item.

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Currently such list can be added using the following code:
        private void button1_Click(object sender, RoutedEventArgs e)
        {
            ListStyle listStyle = CreateHierarchicalListStyle();

            for (int i = 0; i < 9; i++)
            {
                ListLevelStyle listLevel = listStyle.Levels[i];
                listLevel.HangingIndent = 0;
                listLevel.Indent = 0;
                listLevel.StyleName = RadDocumentDefaultStyles.GetHeadingStyleNameByIndex(i + 1);
            }

            DocumentList documentList = new DocumentList(listStyle, this.radRichTextBox.Document);

            for (int i = 0; i < 9; i++)
            {
                string headingStyleName = RadDocumentDefaultStyles.GetHeadingStyleNameByIndex(i + 1);

                StyleDefinition headingStyle = this.radRichTextBox.Document.StyleRepository.GetValueOrNull(headingStyleName);

                headingStyle.ParagraphStyle.ListId = documentList.ID;
                headingStyle.ParagraphStyle.ListLevel = i;
            }
        }

        private static ListStyle CreateHierarchicalListStyle()
        {
            ListStyle listStyle = new ListStyle();

            for (int i = 0; i < ListStyle.ListLevels; ++i)
            {
                StringBuilder levelText = new StringBuilder();
                for (int j = 0; j < i + 1; ++j)
                {
                    levelText.Append("{" + j + "}.");
                }

                listStyle.Levels.Add(new ListLevelStyle()
                {
                    StartingIndex = 1,
                    NumberingFormat = ListNumberingFormat.Decimal,
                    LevelText = levelText.ToString(),
                });
            }

            return listStyle;
        }

Popups (ImageMiniToolBar and SelectionMiniToolBar) stay on most top (act as if "Always on Top" is set to them) even if they had lost focus. 

Workaround: Attach to LostFocus or LostKeyboardFocus events and hide the toolbar in the handler:
this.radRichTextBox.LostFocus += (sender, e) =>
{
    this.radRichTextBox.SelectionMiniToolBar.Hide();
    this.radRichTextBox.ImageMiniToolBar.Hide();
};

The display mode of all fields is changed to Code, so that the export could work correctly and nested fields would be persisted.
Consider optimizing the algorithm, so that fields take less time to be exported.

Add adorners for selecting table rows, table columns and table cells with single click, similar to the ones in MS Word

The "em" unit will be particularly useful for setting the width of columns/the height of rows in tables.

When there are several instances of RadRichTextBox in the same page/view, it would be nice if only one instance display any selection. 

In the same scenario, the color of the selection of TextBox, for example, changes. Clearing the selection on LostFocus would have been a solution, however control loses focus to the color pickers, comboboxes, etc. from the SelectionMiniToolBar and RadRichTextBoxRibbonUI.

In Word, default tab stops are not present in Paragraph's hanging indent. This leads to difference in the length of the Tab symbol in Word and RadRichTextBox, in cases when hanging is bigger than the default tab stop width.

Implement hyphenation in RadRichTextBox for different languages. 

In MS Word, Heading and the subsequent paragraphs could be collapsed using a small arrow next to the heading. 

This is not preserved in the model.

It would be more user-friendly if the currently edited word (the one containing the caret) is excluded from the real-time spell checking and, if incorrect, is not underlined until the caret leaves the word boundary. Otherwise currently edited word is marked as incorrect while its typing is still in progress.

Changes in a word can immediately mark it as correct (i.e. to remove the red underline), but cannot mark it as incorrect - it's marked as incorrect only after the caret leaves the word.

In MS Word, for example, when you "Save as" PDF, you can choose "options" -> Encrypt the document with a password.

Add support for All Capitals (All caps) and Small Capitals (Small caps) run property. MS Word has such option in Home -> Font -> Dialog Launcher -> Font -> All Caps/Small Caps.

All letters of such runs are visualized as capital letters.

The corresponding elements in OOXML are <w:caps /> and <w:smallcaps />.