It’s easy to create vertical text block selection in IntelliJ Idea.
- macOS: Option + Command + Left click and drag mouse
- Windows 10 – Creators update: Click Mouse wheel and drag
- Older Windows: Alt + Left click and drag mouse
- Linux: Click Mouse wheel and drag
- Without mouse: Open Edit menu and select Column Selection Mode (Alt+Shift+Insert), then use Shift + Arrows to select a block
You’ll select vertical text block: