You can access documentation for VEXcode commands through the VEX Command Help or tooltip hint features in the VS Code VEX Extension.
Accessing VEX Command Help
Highlight the text of the command that you want to know information about, then right-click on the selected text.
Select VEX Command Help in the context menu.
If a match to the highlighted text is found, the VEX Command Help window will open to the relevant documentation.
If there are multiple matches to the selected text, the VEX Command Help drop-down menu will appear with a filtered list of relevant functions.
Enter the keyword of the specific command in the text box to filter the relevant commands.
Select the command from the list to open its VEX Command Help.
The VEX Command Help window will open with the documentation for the selected command.
Tooltip Hints
Hover the mouse over the text you want more information about.
The tooltip will appear with information on what is being hovered over.