Google-docs – How to undo strikethrough on Google documents

It is now possible to merge cells in Google Documents, just like how you would do it in Microsoft Word.

From the support page:

You can combine or split the cells of a table in a document or a presentation.

Merge cells

1. Open a document or presentation.
2. Highlight the cells of a table that you want to combine.
3. Open the Table menu.
4. Select Merge cells.

Unmerge cells

1. Open a document or presentation.
2. Highlight the cells of a table that you want to unmerge.
3. Open the Table menu.
4. Select Unmerge cells.

Update 28.02.2016

They seem to have updated the possible keyboard shortcuts. With the new keyboard shortcuts, it also works now on my keyboard with the German layout.

For Windows:

For OS X:

Source: https://support.google.com/docs/answer/179738?hl=en

Original answer

I found a workaround.

1. Select a piece of text in the document.
2. Ctrl+Alt+H opens the Help menu.
3. Arrow down puts the focus in the Search all menus menu.
4. Type "cour", hit Enter.