Every text placeholder can have up to 9 levels of styles. But you can't efficiently display more than one level of prompt text. Anyone else except you will have no idea how to use it.
Don't try to create this all in one placeholder. Create a placeholder for each item of information.
For the presentation title, format the placeholder so the text aligns at the bottom of the placeholder. Then adding a second line to the title then moves the first line up instead of moving the second line down: