How to add global markers showing on all sections

Hi everyone,

I’m a producer using Aeon Timeline as a handy way to work on retro-planning.
(English is not my native language, sorry in advance)

For each trades/topics, I have departements and their associated tasks.
On top of them all is featured the project macro-plan showing key phases and release dates.

Now that my timeline is more than a dozen of departements, it is painful to scroll up everytime I need to check a macro-plan date. And I’d like to avoid duplicating items from the macro-plan into the micro-plans for readibility purposes.

Is there a way to toggle a “global maker” on the timeline that would display on top of everything?
I’m looking for a possibilty to highlight some dates in a similar fashion as what can be done in editing software.

Are you looking to add something like the vertical lines in your picture? You can do this via Calendar Markers, which you can read about here: How calendar markers replace bookmarks - Aeon Timeline 3 Knowledge Base

That is exaclty what I needed, and it can even be be displayed in the png exports. Sweet.
Thanks a lot Jess.