chnaging between tablet and desktop

[smj1234]

hi i m new to brunch i used to work with fydeos but the touchscreen was awful - now with this my touch screen problem solves
i search all issue but didn't find anything use full

in fydeos we had some sort of button in the shelf that help to change between tablet and desktop mode manually

i didn't find it here so if there is one can you help me find it or if there is not is there any hope for this feature get add in future?