Description: Shows how to create subtitles via waveform and upload to a Youtube video.
Comments: SE can allow overlapping: Go to Options - Settings - Waveform/spectrogram: Allow overlap - or just hold down "Shift" while moving/dragging border line in the waveform.
Hint: You can use a shortcut instead of right-clicking in waveform and click "Add text here" for new selection (default shortcut in later versions is the "Enter" key).
Description: Shows how to install SE (portable version) and create subtitles via waveform.
Comments: You can resize the controls in SE, e.g. so the edit text field is not large (and give more room for the list view).
Also, when using portable version, SE needs write access to the installation folder, so do not install to "C:\Program files\..."
Description: Overview of UI elements in SE, waveform options and how to setup shortcuts.
Comments: A bit older, but still explains many key elements of SE.
Description: How to use alignment and how to save in EBU STL format.
To see alignment in the video preview, you need to use "mpv" video player (Options - Settings - video player)