Vicky Stamatopoulou on 29. April 2011
Merlin displays two ruler grid levels for the time line on the Gantt chart per default for new empty projects. One in days and another in calendar weeks. Depending on the planned work values of your activities, you may want to zoom in or out the time scale. To do so, simply click the according buttons on the bottom of the window.
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Should you however need more ruler grid levels, you may define up to four. To add another grid, just click on the arrow pointing down on the right end of a grid level and select ‘Add top row’.

You can define its unit…

And its style, if necessary…

This is an example of a Gantt chart displaying 3 rulers:

You may want to check attached screencast
Post information originally posted: April 15, 2010 updated: April 29, 2011
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How do I set these Gantt time rulers as the default for all projects? It seems I have to re-do them every time I have a new project.
Do you create new projects from a template?
In this case, just open the template over File > Open
Define the correct ruler settings
Save and close the project template file.
New projects created from that project template will show the desired rulers.
Otherwise, you can save your ruler settings in a workspace to be able to apply on any project at any time. Do so, define your Gantt view options as desired,
call Window > Save Workspace
enter a telling name
save “to all projects”
switch all parts off but the following: Window -> View Options
save
Now you can apply those ruler settings on any project over
Window > Workspaces> your working space
I need to map clinical process flow tasks down to the second. Doable?
Hi BobbyG, Merlin has minutes to years scales, no seconds sorry.
[...] Merlin: Adjusting time rulers in the Gantt chart [...]
I would like to change the font type and size in the Gantt chart headings. Can do with other scheduling programs. Doable?
This is not possible, sorry.
You cannot change the style of the heading row, neither in the Outline, nor in the Gantt.
Best regards, Vicky