Steps
Go to the Projects page by clicking on the 'Briefcase' icon in the left menu or by going to the following URL: https://app.heraw.com/projects
Select a project by clicking on its name to open it
Click on the 'Files' tab at the top right of the interface
or
Go to the DAM page by clicking on the 'Hard Drive' icon in the left menu or by going to the following URL: https://app.heraw.com/folders
Select a folder that contains files
Double click on a video file to open it
Click on the 'Subtitles' icon at the top right of the contextual menu
View the subtitle blocks
Hover over a subtitle block
Click on the 'Pencil' icon at the top right of the subtitle block
Select the start timecode of the subtitle by clicking on the 'TC IN' icon to retrieve the current timecode
Navigate the video to choose the end timecode of the subtitle
Select the end timecode of the subtitle by clicking on the 'TC OUT' icon to retrieve the current timecode
Enter the desired text in the available text field
Click on the 'Save' icon at the top right of the subtitle block to validate the subtitle modification