Create live templates

Press Ctrl+Alt+S to open the IDE settings and select Editor | Live Templates.

Select the template group where you want to create a new live template (for example, other).

If you do not select a template group, the live template will be added to the user group.

Click and select Live Template.

In the Abbreviation field, specify the characters that will be used to expand the template. For example: todo. You can also define the languages to apply the newly added template.

(Optional) In the Description field, describe the template for reference in the future.

For example: Insert TODO comment with the current date and username

In the Template text field, specify the body of the template with variables.

For example: # TODO $DATE$ $USER$: $END$

Click Edit variables to define the variables using functions:

You can set a default value for cases when the expression fails to evaluate, although these particular functions should always return a valid value. You can also disable the Skip if defined option for a variable to highlight the expanded value and let the user modify it if necessary.

Apply all your changes.

In the editor, type todo and press Tab.

Depending on the current system date and username, the template should expand to something like:

# TODO 09/02/2021 jetbrains:

Gif