Marquee text: show only one sequence / automatic duration



it would be nice to have a setting for marquee text, which shows only on sequence of the whole text and then starts the next layout (e.g. if it is part of a campaign).

Example: I use a long text which scrolls vertically. After the text has been shown completely the layout should be ended and not start again.

This feature would also be convenient in respect of setting the duration automatically for marquee texts. When changing the text in an marquee, I always have to test, how long one sequence will take and set this time manually for this layout (and have to repeat this every time I change the text length again).