Where's strikethrough?

Is there any way to put strikethrough on the formatting toolbar, instead of only accessible through the hotkey of shift+ctrl+hyphen?

Go to View - Customize Toolbars. Strikethrough is on the list, though not grouped with Bold, Italic and Underline. It’s just after Math Type Equation. Don’t ask me why.

Thanks!

Select and Right-click the text you want to modify, select font from the context menu, and strikethrough is near the bottom. Also, Ctrl+Shift± (hyphen).

Yes, I know about those. I was asking specifically about putting it on the formatting menu so I could have it right next to bold, italics, and underline.