Change default time ranges in dashboard

Hello I wonder if it is possible within a dashboard to build predefined time ranges
exemple : only 4 time ranges available: last year, last month, last week and from to

Your own custom time range? And not use the time picker?

I want to be able to edit the time picker cause most of proposals are not usable in my context

Have you seen/tried this?

seems to be what I need, I will try it
thanks grant2