To do this, the script must first be in Revision mode -- touch the Tools icon at the upper right corner, choose Revisions, then turn Revision Mode on.
Touch the script to dismiss the Tools menu and touch and hold on the text you want to select. From the popup menu, choose Select.
With the selection pins, highlight the desired text.
On the top right side of the keyboard, touch the asterisk icon.
Choose Mark Revised.
If Revision Page Colors is turned on, the page will change to the color assigned to the current revision set. The revised lines will have revision marks in the right margin.
If the script has been edited in the desktop version of Final Draft and revised text in the current revision set has been assigned a color, the text that has been marked as revised will change to that color.
To set selected text as unrevised and remove the marks from the right margin, touch the asterisk icon and choose Clear Revised.