Unfortunately Ctrl maps to a different key on MacOS and other shortcuts are OS defined as well so adding them to the Tooltips is not easy especially from a translation perspective.
Here is a list of the PageEdit shortcuts according to its main.ui file but these are platform specific mappings (they differ between Windows and macOS). I will try to get this info added to the PageEdit user guide as some point.
Mainly these are the original Sigil BookView default shortcuts carried over.
FYI - Some still retain their old Alt key sequences which just cause problems on some international keyboards and so I have replaced those in the next release (and marked them as such below).
Code:
PageEdit Keyboard Shortcuts
actionSave
Save the current file.
Ctrl+S
actionPrint
Print the current Page.
Ctrl+P
actionSaveAs
Save the current file with a different filename.
Ctrl+Shift+S
actionCut
Cuts the selected text from the document and puts it on the clipboard.
OS Standard Shortcut
actionPaste
Pastes the content from the clipboard into the file.
OS Standard Shortcut
actionUndo
Reverts the changes of the previous operation.
Ctrl+Z
actionRedo
Restores the changes reverted by the previous Undo action.
Ctrl+Y
actionCopy
Copies the selected text and puts it on the clipboard.
OS Standard Shortcut
actionAlignCenter
Center the paragraph.
Ctrl+E
actionAlignJustify
Align the paragraph to both the left and right margins.
Ctrl+J
actionBold
Make the selected text bold.
Ctrl+B
actionItalic
Make the selected text italic.
Ctrl+I
actionOpen
Open a file from disk.
Ctrl+O
actionUnderline
Underline the selected text.
Ctrl+U
actionCasingLowercase
Set selected text to lowercase.
Alt+L (will be Ctrl+Alt+L in the next release)
actionCasingUppercase
Set selected text to uppercase.
Alt+U (will be Ctrl+Alt+U in the next release)
actionExit
Quit
Ctrl+Q
actionInsertBulletedList
Create a bulleted list from selection.
Ctrl+Shift+L
actionZoomIn
Zoom In
Ctrl+=
actionZoomOut
Zoom Out
Ctrl+-
actionIncreaseIndent
Increase the indent level of the paragraph.
Ctrl+Alt+M
actionDecreaseIndent
Decrease the indent level of the paragraph.
Ctrl+Shift+M
actionInsertSGFSectionMarker
Insert Sigil split file marker
Ctrl+Shift+Return
actionPreferences
Preferences...
F5
actionZoomReset
Zoom Reset
Ctrl+0
actionHeading1
Format paragraph as a level 1 heading.
Ctrl+1
actionHeading2
Format paragraph as a level 2 heading.
Ctrl+2
actionHeading3
Format paragraph as a level 3 heading.
Ctrl+3
actionHeading4
Format paragraph as a level 4 heading.
Ctrl+4
actionHeading5
Format paragraph as a level 5 heading.
Ctrl+5
actionHeading6
Format paragraph as a level 6 heading.
Ctrl+6
actionHeadingNormal
Format paragraph as a normal paragraph.
Ctrl+7
actionSelectAll
Select all text in the document.
Ctrl+A
actionInspect
Inspect the page.
Ctrl+F5
actionFind
Find text in the page
Ctrl+F
actionNext
Next file in navigation list
Ctrl+PgDown
actionPrev
Previous file in navigation list
Ctrl+PgUp
actionInsertFile
Select existing image, video or audio files from your book to insert into the text.
Ctrl+Shift+I