<https://community.gonitro.com/topic/10636-context-menu-items-are-greyed-out/>
<http://schema.org/text>
"I want to:\n \n\n\n\t- change the highlight color\n \n\n\n\t- copy the selected text\n \n\n\n\tBut the context menu items were greyed out, as shown in the following link:\n \n\n\n\thttps://drive.google.com/file/d/1tSD4_c4h0DcO3gfCWv5-mg750yUpdSyQ/view?usp=sharing\n \n\n\n\tMay I know the reason and how to fix it?  Thanks.\n \n\n\n\t \n \n\n\n\t \n \n\n\n\t \n "
<https://community.gonitro.com/topic/10636-context-menu-items-are-greyed-out/>