angusmacleod

Andrew, you are right. My test installation was brand new, and it looks like the actual default settings for the toolbars include the Source Code option, but the settings page shows Source Code as an unused button, so if the settings are changed and saved, Source Code is no longer in the menu.

There is a simple solution that I had overlooked – I dragged the Source Code button onto a toolbar, and the Tools menu option reappears!

I, too, have lost the Tools menu item (and drop down). It happened when I dragged the Background color button to the second toolbar. To be sure it isn’t a plugin conflict, I created a new website on my IIS 7.5 server with WordPress 4.9.8 and installed the single plugin TinyMCE Advanced 4.8.0. I opened the Hello World! post and saw that initially the Tools item showed in the menu between Format and Table, but after adding the Background color and refreshing the edit page, Tools was no longer present in the menu. Removing the Background color did not restore the Tools menu option, but a database restore would do that. The same happened when I added the horizontal bar button (and maybe others).Is there a more subtle way of restoring to the Tools menu (preferably with additional buttons?