Text Options (bold, underline, strikethrough, italicized, highlighting)

we should be able to underline any PART of a text no matter the font we use. As of now, on most fonts uploaded from google fonts, we don't have the option to underline a single word, only the whole text. This is the same problem for boldness, underline, strikethrough, and italicized. I don't want to underline the whole paragraph, only a certain word. Also please add a highlighting option so we can highlight text.