a feature to highlight contents

[yu2chuan]

Is your feature request related to a problem? Please describe.
I can't use the following syntax to correctly highlight the contents.
<span style="background-color: yellow;"></span>
or
<mark></mark>
Is there any quick way I can highlight the contents in tables for my next review

Describe the solution you'd like

use Ctrl+Y (Yellow) or a shortcut to quickly highlight where I selected.

Describe alternatives you've considered

Additional context

Other

• I want to try to complete the development of this feature.