Version 2017.03 improves the "Insert Date and Time" feature of the description text editor. A default format can now be specified.
After a default format has been specified, the Ctrl+T shortcut will insert the current date/time using the default format - bypassing the need to click the button and make a selection from the Insert Date and Time window.
After pressing Ctrl+T, the current date/and time is inserted, using the specified default formula.