I suggest to change it to:By default, all placeholders for date and time will use the time when the dialog box was opened. See modifiers [T1], [T2], and [T3].
In the F7 Help the above paragraph is misssing, but it also applies to the F7 dialog - so it should be added.By default, all placeholders for date and time will use the time when the dialog box was opened. See modifiers [T1], [T2], and [T3] for the multi-rename tool.