Offset labels for vert in Gantt

[Jmuccigr]

I'mtrying to create a timeline using a Gantt chart. For the present I'm using vert to indicate events within the shown timespan. The issue is that when these are close together in time, the labels overlap. Here's a screenshot where you can see the labels to the right at bottom:

Am I correct that there is no way to offset them at present?

One solution may be to use a section with milestones, but that's a work-around.

TIA.