Code completion
You can accept the current selection in the code completion suggestions list with the period key (.), comma (,), semicolon (;), space, and some other characters.
The selected name is automatically entered in the editor followed by the entered character.
To use this feature, make sure that the Insert selected suggestion by pressing space, dot, or other context-dependent keys checkbox is selected on the Editor | General | Code Completion page of the Settings dialog &shortcut:ShowSettings;.