Add more functions to tinymce in admin panel

This may seem like a good enough set of functions:

but "Clear formatting" function is also a must. Most of the time content is copy-pasted from some docs and it brings all the styling set in these docs. In prestashop 1.7 there's no way to clear this so you have to paste plain text and do html structure all over again. Please add Clear formatting option

Other tinymce functions I often look for while editing content is:

• text color
• font size
• div instead of paragraph
• standard BS button types (btn-primary, btn-outline-secondary, btn-info, etc.), the only one available atm is button