Relative and Absolute duration

Hello everybody,

I set a build in optional marker and I'm getting the absolute time of my project with my behaviors.
My issue is that I'm trying to have in the same Final Cut Pro X Title, the option for absolute or relative duration of my behaviors.
But when I uncheck the build-in optional checkbox in Final Cut Pro X I don't get the relative duration as I expect.
I get no animation. Is there a way to have in my title the option for absolute and relative duration of my behaviors ?

In other words :

In my timeline I have one build-in optional marker. When I save my title, then in Final Cut Pro everything works fine for the absolute time.
If I delete this marker I get the relative time. Is there a way to have these two types of project (one with marker and one without) in one title as an option for using the build-in optional marker or not ?
If I uncheck the build-in option in Final Cut Pro X I get no animation at all. No behaviors, only constant text.

Thanks.