Add a comment keyboard shortcut in 9 apps
Add a comment has a documented keyboard shortcut in 9 apps here, among them Google Docs, Google Sheets, Google Slides, Microsoft Excel. The most common keys are Ctrl + Alt + M on Windows and Cmd + Option + M on a Mac.
Keys on this page were last checked against their sources on September 12, 2026.
| App | Windows | Mac | What it does |
|---|---|---|---|
| Google Docs | Windows Ctrl + Alt + M | Mac Cmd + Option + M | Attach a review comment |
| Google Sheets | Windows Ctrl + Alt + M | Mac Cmd + Option + M | Add or edit a cell comment |
| Google Slides | Windows Ctrl + Alt + M | Mac Cmd + Option + M | Attach a review comment |
| Microsoft Excel | Windows Ctrl + Shift + F2 | Mac Not documented | Threaded comment |
| Microsoft PowerPoint | Windows Ctrl + Alt + M | Mac Not documented | Add a review comment |
| Microsoft Word | Windows Ctrl + Alt + M | Mac Not documented | Attach a review comment |
| Notion | Windows Ctrl + Shift + M | Mac Not documented | Add comment |
| Sketch | Windows Not documented | Mac N | Insert a comment |
| Todoist | Windows C | Mac C | Comment on the task |
What most apps settled on for Add a comment
On Windows, Ctrl + Alt + M is the combination in 5 of the 8 apps here that document one. On a Mac, it is Cmd + Option + M in 3 of 5. 3 apps go their own way on Windows, and the table above is where to find them.
Where the table is deliberately empty
4 apps here publish no Mac key for Add a comment, so those cells are left blank. 1 documents it for Mac only. A blank there is a gap in that maker documentation for Add a comment, not an oversight here, and it is never filled by converting the other system.
If the keys for Add a comment do nothing
The 9 apps listed here each decide this for themselves, so the first thing to check is that you are reading the row for the app you are actually in, and the column for your system. After that, check the app version, since add a comment is the kind of command makers move between releases. Report a correction
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