Can I add title text to the menu?
for example on the left and right rotate icons at the bottom there is the word "rotate" and for the zoom icon there is the word "zoom" under the icon. and continue to appear in the preview.
Can't find that example unfortunately. Are you using PixRiot iframes as in that case it would be more involved? Otherwise, it's mainly customizing viewer skin CSS to make the toolbar buttons wider and taller, and then adding ::after or ::before with your label text, for example: