Gantt Chart - Adjust Width of Dimension Panel

In the Gantt Chart, the width of the dimension panel cannot be adjusted.  In some cases, we have dimension values with a large number of characters, which makes the dimension panel really wide.  It would be nice to be able to adjust the dimension panel to a custom width and have options to wrap text or cut text off.

I'm attaching a screenshot where you can see the dimension panel is really wide.  Somewhere in the data set there is a dimension value with a really long string, which makes the dimension panel really wide.

We are on version 2.1.2